
Open Gl Problem...
Okay, here comes another newbie asking some probably obvious questions about Open GL... I''ve read through the entire tutorials on "Using OpenGL in a window" or something like that. I must say that NeHe did a great job making the code clear and understandable
. But whenever I try to compiler it (most of the errors I fixed - most were typos) it keeps giving me the error (with some others, syntax erors/undefined variables, etc) but this is the main one:
error C2143: syntax error : missing '';'' before ''if''
This goes on for eseveral lines... I dont exactly know where I am missing the '';'' at... I didnt just copy/paste the code I tpyed it out so maybe its an error on my part, I dont know. Anyways, I was wondering if anyone knows how to fix this?
Thanks alot, it will really help out a newbie.
orcblood

Okay, sorry about that I guess I should have thought ahead there... Anyways, heres the code - I probably have typed some things wrong or something like that... Anyways, Im going to modify it - my friend actually has a book on this stuff but he told me to read through nehe''s tuts first. Below is all of the source code - sorry for it being so damn long but I dont want to get one thing right and then have another go wrong. I should say thanks for any help right now - just so that no one copies/pastes it into the source - if your going to that is...
Thanks,
orcblood
//
// Header Files
//
#include <windows.h>
#include <gl\gl.h>
#include <gl\glu.h>
#include <gl\glaux.h>
//
// Program variables
//
HGLRC hRC = NULL;
HDC hDC = NULL;
HWND hWnd = NULL;
HINSTANCE hInstance = NULL;
//
// Arrays to monitor and keyboard
//
bool keys[256];
bool active = TRUE;
bool fullscreen = FALSE;
//
// Define the windows proc
//
LRESULT CALLBACK WndProc(HWND, UNIT, WPARAM, LPARAM);
//
// Resize the scene to that of the window
//
GLvoid ReSizeGLScene(GLsizei width, GLsizei height)
{
if(height == 0)
{
height=1;
}
glViewport(0, 0, width, height);
//
// Set up the screen''s perspective
//
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
// the ratio of the window
gluPerspective(45.0f, (GLfloat)width/(GLfloat)height, 0.1f, 100.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
//
// Set up OpenGL
//
int InitGL(GLvoid)
{
gl_ShadeModel(GL_SMOOTH);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepth(1.0f);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
return TRUE;
}
//
// OpenGL Drawing section all OpenGL drawing code goes here
//
int DrawGLScene(GLvoid)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
return TRUE;
}
//
// Release the OpenGL window to release the rendering contex
//
GLvoid KillGLWindow(GLvoid)
{
// check for fullscreen mode
if(fullscreen)
{
ChangeDisplaySettings(NULL, 0);
ShowCursor(TRUE);
}
// check for rendering contex
if (hRC)
{
if (!wglMakeCurrent, NULL, NULL)
{
MessageBox(NULL, "An error occured while releasing the program from fullscreen mode.", "ERROR", MB_OK | MB_ICONINFORMATION);
}
// attempt to delete the rendering context
if (!wglDeleteContext(hRC))
{
MessageBox(NULL, "Releasing the rendering context failed.", "ERROR", MB_OK | MB_ICONINFORMATION);
}
}
hRC = NULL;
}
// check to see if the program still has a rendering context
if (hDC && !ReleaseDC(hWnd, hDC))
{
MessageBox(NULL, "Releasing the device context failed.", "ERROR", MB_OK | MB_ICONINFORMATION);
hDC = NULL;
}
// check to see if the window''s handle is still working
if (!hWnd && !DestroyWindow(hDC))
{
MessageBox(NULL, "Unable to release the window!", "ERROR", MB_OK | MN_ICONINFORMATION);
hWnd = NULL;
}
// unregister the window class
if (!UnregisterClass("OpenGL", hInstance))
{
MessageBox(NULL, "Unregistering the window''s class failed.", "ERROR", MB_OK | MB_ICONINFORMATION);
hInstance = NULL;
}
}
//
// Create the OpenGL window
//
BOOL CreateGLWindow(char* title, int width, int height, int bits, bool fullscreenflag)
{
GLunit PixelFormat;
WNDCLASS wc;
DWORD dwExStyle;
DWORD dwStyle;
RECT WindowRect;
WindowRect.left = (long)0;
WindowRect.right = (long)width;
WindowRect.top = (long)0;
WindowRect.bottom = (long)height;
fullscreen = fullscreenflag;
hInstance = GetModuleHandle(NULL);
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
wc.lpfnWndProc = (WNDPROC) WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(NULL, IDC_WINLOGO);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = NULL;
wc.lpszMenuName = NULL;
wc.lpszClassName = "OpenGL"
if (!RegisterClass(&wc))
{
MessageBox(NULL, "Failed to start the program.", "ERROR", MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
if (fullscreen)
{
DEVMODE dmScreenSettings;
memset (&dmScreenSettings, 0, sizeof(dmScreenSettings));
dmScreenSettings.dmSize = sizeof(dmScreenSettings);
dmScreenSettings.dmPelsWidth = width;
dmScreenSettings.dmPelsHeight = height;
dmScreenSettings.dmBitsPerPel = bits;
dmScreenSettings.dmFields = DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;
if (ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL)
{
if (MessageBox(NULL, "Unable to switch into FullScreen Mode! Would you like to use WindowedMode instead?", "OrcishRendering", MB_YESNO|MB_ICONEXCLAMATION)==IDYES)
fullscreen = FALSE;
}
else
{
MessageBox("The program will now close.", "OrcishRendering", MB_OK|MB_ICONSTOP);
return FALSE;
}
}
}
if (fullscreen)
{
dmExnostyle=WS_EX_APPWINDOW;
dmnostyle=WS_POPUP;
ShowCursor(FALSE);
}
else
{
dmExnostyle=WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
dmExnostyle=WS_OVERLAPPEDWINDOW;
}
AdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle);
if (!hWnd=CreateWindowEx(
dwExStyle,
"OrcishRendering",
title,
WS_CLIPSIBLINGS |
WS_CLIPCHILDREN |
dwStyle,
0, 0,
WindowRect.right-WindowRect.left,
WindowRect.bottom-WindowRect.top,
NULL,
NULL,
hInstance,
NULL))
{
KillGLWindow();
MessageBox(NULL, "An error occured while the window was being created!", "ERROR", MB_OK | MB_ICONEXCLAMATION);
return FALSE;
}
static PIXELFORMATSCRIPTOR pfd =
{
sizeof(PIXELFORMATSCRIPTOR),
1,
PFD_DRAW_TO_WINDOW |
PFD_SUPPORT_OPENGL |
PFD_TYPE_RGBA,
bits,
0, 0, 0, 0, 0, 0,
0,
0,
0,
0, 0, 0, 0,
16,
0,
0,
PFD_MAIN_PLANE,
0,
0, 0, 0
};
if (!(hDC=GetDC(hWnd)))
{
KillGLWindow();
MessageBox(NULL, "An error occured while creating the window!", "ERROR", MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
if (!(PixelFormat=ChoosePixelFormat(hDC, &pfd)))
{
KillGLWindow();
MessageBox(NULL, "An error occured while selecting a pixel format!", "ERROR", MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
if (!SetPixelFormat(hDC, PixelFormat, &pfd))
{
KillGLWindow();
MessageBox(NULL, "Unable to set a PixelFormat.", "ERROR", MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
if (!(hRC=wglCreateContext(hDC)))
{
KillGLWindow();
MessageBox(NULL, "An error occured while trying to set the RenderingContext.", "ERROR", MB_OK|MB_ICONEXCLAMATION);
return FALSE
}
if (!wglMakeCurrent(hDC, hRC))
{
KillGLWindow();
MessageBox(NULL, "An error occured while trying to activate the OpenGL RenderingContext.", "ERROR", MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
ShowWindow(hWnd, SW_SHOW);
SetForegroundWindow(hWnd);
SetFocux(hWnd);
ResizeGLScene(width, height);
if (!InitGL())
{
KillGLWindow();
MessageBox(NULL, "An error occured while trying to initialize the program.", "ERROR", MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
return TRUE;
}
LRESULT CALLBACK WndProc ( HWND hWnd,
UNIT uMsg,
WPARAM wParam,
LPARAM lParam)
{
switch (uMsg)
case WM_ACTIVATE:
{
if (!HIWORD(wParam))
{
active = TRUE;
}
else
{
active = FALSE;
}
return 0;
}
case WS_COMMAND:
{
switch (wParam)
{
case SC_SCREENSAVE:
case SC_MONITORPOWER:
return 0;
}
break;
}
case WM_CLOSE:
{
PostQuitMessage(0);
return 0;
}
case WM_KEYDOWN:
{
keys[wParam]=TRUE;
return 0;
}
case WM_KEYUP:
{
keys[wParam]=FALSE;
return 0;
}
case WM_SIZE:
{
ResizeGLScene(LOWORD(lParam), HIWORD(lParam));
return 0;
}
}
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
int WINAPI WinMain(
HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
MSG msg;
BOOL done=FALSE;
if (!CreateGLWindow("OrcishRendering", 640, 480, 16, FALSE)
{
return 0;
}
while (!done)
{
if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
if (msg.message==WM_QUIT)
{
done = TRUE;
}
else
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
else
{
if (active)
{
if (keys[VK_ESCAPE])
{
done = TRUE;
}
else
{
DrawGLScene();
SwapBuffers(hDC);
}
}
if (keys[VK_F1])
{
keys[VK_F1]=FALSE;
KillGLWindow();
fullscreen=!fullscreen;
if (!CreateGLWindow("OrcishRendering", 640, 480, 16, FALSE))
{
return 0;
}
}
}
}
}
KillGLWindow();
return (msg.wParam);
}
Thanks,
orcblood
//
// Header Files
//
#include <windows.h>
#include <gl\gl.h>
#include <gl\glu.h>
#include <gl\glaux.h>
//
// Program variables
//
HGLRC hRC = NULL;
HDC hDC = NULL;
HWND hWnd = NULL;
HINSTANCE hInstance = NULL;
//
// Arrays to monitor and keyboard
//
bool keys[256];
bool active = TRUE;
bool fullscreen = FALSE;
//
// Define the windows proc
//
LRESULT CALLBACK WndProc(HWND, UNIT, WPARAM, LPARAM);
//
// Resize the scene to that of the window
//
GLvoid ReSizeGLScene(GLsizei width, GLsizei height)
{
if(height == 0)
{
height=1;
}
glViewport(0, 0, width, height);
//
// Set up the screen''s perspective
//
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
// the ratio of the window
gluPerspective(45.0f, (GLfloat)width/(GLfloat)height, 0.1f, 100.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
//
// Set up OpenGL
//
int InitGL(GLvoid)
{
gl_ShadeModel(GL_SMOOTH);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepth(1.0f);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
return TRUE;
}
//
// OpenGL Drawing section all OpenGL drawing code goes here
//
int DrawGLScene(GLvoid)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
return TRUE;
}
//
// Release the OpenGL window to release the rendering contex
//
GLvoid KillGLWindow(GLvoid)
{
// check for fullscreen mode
if(fullscreen)
{
ChangeDisplaySettings(NULL, 0);
ShowCursor(TRUE);
}
// check for rendering contex
if (hRC)
{
if (!wglMakeCurrent, NULL, NULL)
{
MessageBox(NULL, "An error occured while releasing the program from fullscreen mode.", "ERROR", MB_OK | MB_ICONINFORMATION);
}
// attempt to delete the rendering context
if (!wglDeleteContext(hRC))
{
MessageBox(NULL, "Releasing the rendering context failed.", "ERROR", MB_OK | MB_ICONINFORMATION);
}
}
hRC = NULL;
}
// check to see if the program still has a rendering context
if (hDC && !ReleaseDC(hWnd, hDC))
{
MessageBox(NULL, "Releasing the device context failed.", "ERROR", MB_OK | MB_ICONINFORMATION);
hDC = NULL;
}
// check to see if the window''s handle is still working
if (!hWnd && !DestroyWindow(hDC))
{
MessageBox(NULL, "Unable to release the window!", "ERROR", MB_OK | MN_ICONINFORMATION);
hWnd = NULL;
}
// unregister the window class
if (!UnregisterClass("OpenGL", hInstance))
{
MessageBox(NULL, "Unregistering the window''s class failed.", "ERROR", MB_OK | MB_ICONINFORMATION);
hInstance = NULL;
}
}
//
// Create the OpenGL window
//
BOOL CreateGLWindow(char* title, int width, int height, int bits, bool fullscreenflag)
{
GLunit PixelFormat;
WNDCLASS wc;
DWORD dwExStyle;
DWORD dwStyle;
RECT WindowRect;
WindowRect.left = (long)0;
WindowRect.right = (long)width;
WindowRect.top = (long)0;
WindowRect.bottom = (long)height;
fullscreen = fullscreenflag;
hInstance = GetModuleHandle(NULL);
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
wc.lpfnWndProc = (WNDPROC) WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(NULL, IDC_WINLOGO);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = NULL;
wc.lpszMenuName = NULL;
wc.lpszClassName = "OpenGL"
if (!RegisterClass(&wc))
{
MessageBox(NULL, "Failed to start the program.", "ERROR", MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
if (fullscreen)
{
DEVMODE dmScreenSettings;
memset (&dmScreenSettings, 0, sizeof(dmScreenSettings));
dmScreenSettings.dmSize = sizeof(dmScreenSettings);
dmScreenSettings.dmPelsWidth = width;
dmScreenSettings.dmPelsHeight = height;
dmScreenSettings.dmBitsPerPel = bits;
dmScreenSettings.dmFields = DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;
if (ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL)
{
if (MessageBox(NULL, "Unable to switch into FullScreen Mode! Would you like to use WindowedMode instead?", "OrcishRendering", MB_YESNO|MB_ICONEXCLAMATION)==IDYES)
fullscreen = FALSE;
}
else
{
MessageBox("The program will now close.", "OrcishRendering", MB_OK|MB_ICONSTOP);
return FALSE;
}
}
}
if (fullscreen)
{
dmExnostyle=WS_EX_APPWINDOW;
dmnostyle=WS_POPUP;
ShowCursor(FALSE);
}
else
{
dmExnostyle=WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
dmExnostyle=WS_OVERLAPPEDWINDOW;
}
AdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle);
if (!hWnd=CreateWindowEx(
dwExStyle,
"OrcishRendering",
title,
WS_CLIPSIBLINGS |
WS_CLIPCHILDREN |
dwStyle,
0, 0,
WindowRect.right-WindowRect.left,
WindowRect.bottom-WindowRect.top,
NULL,
NULL,
hInstance,
NULL))
{
KillGLWindow();
MessageBox(NULL, "An error occured while the window was being created!", "ERROR", MB_OK | MB_ICONEXCLAMATION);
return FALSE;
}
static PIXELFORMATSCRIPTOR pfd =
{
sizeof(PIXELFORMATSCRIPTOR),
1,
PFD_DRAW_TO_WINDOW |
PFD_SUPPORT_OPENGL |
PFD_TYPE_RGBA,
bits,
0, 0, 0, 0, 0, 0,
0,
0,
0,
0, 0, 0, 0,
16,
0,
0,
PFD_MAIN_PLANE,
0,
0, 0, 0
};
if (!(hDC=GetDC(hWnd)))
{
KillGLWindow();
MessageBox(NULL, "An error occured while creating the window!", "ERROR", MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
if (!(PixelFormat=ChoosePixelFormat(hDC, &pfd)))
{
KillGLWindow();
MessageBox(NULL, "An error occured while selecting a pixel format!", "ERROR", MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
if (!SetPixelFormat(hDC, PixelFormat, &pfd))
{
KillGLWindow();
MessageBox(NULL, "Unable to set a PixelFormat.", "ERROR", MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
if (!(hRC=wglCreateContext(hDC)))
{
KillGLWindow();
MessageBox(NULL, "An error occured while trying to set the RenderingContext.", "ERROR", MB_OK|MB_ICONEXCLAMATION);
return FALSE
}
if (!wglMakeCurrent(hDC, hRC))
{
KillGLWindow();
MessageBox(NULL, "An error occured while trying to activate the OpenGL RenderingContext.", "ERROR", MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
ShowWindow(hWnd, SW_SHOW);
SetForegroundWindow(hWnd);
SetFocux(hWnd);
ResizeGLScene(width, height);
if (!InitGL())
{
KillGLWindow();
MessageBox(NULL, "An error occured while trying to initialize the program.", "ERROR", MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
return TRUE;
}
LRESULT CALLBACK WndProc ( HWND hWnd,
UNIT uMsg,
WPARAM wParam,
LPARAM lParam)
{
switch (uMsg)
case WM_ACTIVATE:
{
if (!HIWORD(wParam))
{
active = TRUE;
}
else
{
active = FALSE;
}
return 0;
}
case WS_COMMAND:
{
switch (wParam)
{
case SC_SCREENSAVE:
case SC_MONITORPOWER:
return 0;
}
break;
}
case WM_CLOSE:
{
PostQuitMessage(0);
return 0;
}
case WM_KEYDOWN:
{
keys[wParam]=TRUE;
return 0;
}
case WM_KEYUP:
{
keys[wParam]=FALSE;
return 0;
}
case WM_SIZE:
{
ResizeGLScene(LOWORD(lParam), HIWORD(lParam));
return 0;
}
}
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
int WINAPI WinMain(
HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
MSG msg;
BOOL done=FALSE;
if (!CreateGLWindow("OrcishRendering", 640, 480, 16, FALSE)
{
return 0;
}
while (!done)
{
if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
if (msg.message==WM_QUIT)
{
done = TRUE;
}
else
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
else
{
if (active)
{
if (keys[VK_ESCAPE])
{
done = TRUE;
}
else
{
DrawGLScene();
SwapBuffers(hDC);
}
}
if (keys[VK_F1])
{
keys[VK_F1]=FALSE;
KillGLWindow();
fullscreen=!fullscreen;
if (!CreateGLWindow("OrcishRendering", 640, 480, 16, FALSE))
{
return 0;
}
}
}
}
}
KillGLWindow();
return (msg.wParam);
}
Is had to read cos the code is not formated well in this
forum message but i think remove the clamp at:
if (fullscreen)
{
DEVMODE dmScreenSettings;
memset (&dmScreenSettings, 0, sizeof(dmScreenSettings));
dmScreenSettings.dmSize = sizeof(dmScreenSettings);
dmScreenSettings.dmPelsWidth = width;
dmScreenSettings.dmPelsHeight = height;
dmScreenSettings.dmBitsPerPel = bits;
dmScreenSettings.dmFields = DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;
if (ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL)
{
if (MessageBox(NULL, "Unable to switch into FullScreen Mode! Would you like to use WindowedMode instead?", "OrcishRendering", MB_YESNO|MB_ICONEXCLAMATION)==IDYES)
fullscreen = FALSE;
}
else
{
MessageBox("The program will now close.", "OrcishRendering", MB_OK|MB_ICONSTOP);
return FALSE;
}
}
} <-- this one
hope it''s right !
forum message but i think remove the clamp at:
if (fullscreen)
{
DEVMODE dmScreenSettings;
memset (&dmScreenSettings, 0, sizeof(dmScreenSettings));
dmScreenSettings.dmSize = sizeof(dmScreenSettings);
dmScreenSettings.dmPelsWidth = width;
dmScreenSettings.dmPelsHeight = height;
dmScreenSettings.dmBitsPerPel = bits;
dmScreenSettings.dmFields = DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;
if (ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL)
{
if (MessageBox(NULL, "Unable to switch into FullScreen Mode! Would you like to use WindowedMode instead?", "OrcishRendering", MB_YESNO|MB_ICONEXCLAMATION)==IDYES)
fullscreen = FALSE;
}
else
{
MessageBox("The program will now close.", "OrcishRendering", MB_OK|MB_ICONSTOP);
return FALSE;
}
}
} <-- this one
hope it''s right !
use
[ source ]
MOO!
[ /source ]
except without the spaces in the tags, and you''ll get
-~-The Cow of Darkness-~-

If you see the image I am online
Check out PGNet.tk
[ source ]
MOO!
[ /source ]
except without the spaces in the tags, and you''ll get
MOO!
-~-The Cow of Darkness-~-

If you see the image I am online

Check out PGNet.tk
-~-The Cow of Darkness-~-
Sorry
I thought that it might be
Thanks,
orcblood
[edited by - orcblood on June 21, 2003 4:48:18 PM]

but I wasnt sure. Anyways, I tried to remove that clamp and it didnt work... I get more errors now... Maybe I should just go out and buy a book.Thanks,
orcblood
[edited by - orcblood on June 21, 2003 4:48:18 PM]
June 21, 2003 03:59 PM
I see a place where you''re missing a '';'' before an ''if''. In the CreateGLWindow function about 15 lines down...
...
wc.lpszMenuName = NULL;
wc.lpszClassName = "OpenGL" <-----
if (!RegisterClass(&wc))
{
MessageBox(NULL, "Failed to start the program.", "ERROR", MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
....
I hope this helps.
...
wc.lpszMenuName = NULL;
wc.lpszClassName = "OpenGL" <-----
if (!RegisterClass(&wc))
{
MessageBox(NULL, "Failed to start the program.", "ERROR", MB_OK|MB_ICONEXCLAMATION);
return FALSE;
}
....
I hope this helps.
Okay, I rewrote the code and now I only have 4 errors :D. Im pretty sure that their easy to fix - WinMain and WndProc errors mostly. I just dont want to mess anything up, so could anyone help me fix these errors?
Thanks, below is the code.
orcblood
Thanks, below is the code.
orcblood
/*Source code for the main window of OrcishRenderingBelow is the OpenGL code for:Initializing the window and setting up OpenGL,Opening and writing a .ms3d file into the assigned views,Rendering the .ms3d model in the Rendering Window.*///// Include Files//#include <windows.h>#include <gl\gl.h>#include <gl\glu.h>#include <gl\glaux.h>//// Handles and contexts//HDC hDC = NULL;HGLRC hRC = NULL;HWND hWnd=NULL;HINSTANCE hInstance;//// Flags and Arrays//bool keys[256];bool active = TRUE;bool fullscreen = TRUE;//// Declair WinProc//LRESULT CALLBACK WndProc(HWND, UNIT, WPARAM, LPARAM);//// Resize the window and the OpenGL viewGLvoid ReSizeGLScene(GLsizei width, GLsizei height){ if (height == 0) { height = 1; } glViewport(0, 0, width, height); glMatrixMode(GL_PROJECTION); glLoadIdentity(); // calculate the ratio of the window gluPerspective(45.0f, (GLfloat)width/(GLfloat)height, 0.1f, 100.0f); glMatrixMode(GL_MODELVIEW); glLoadIdentity();}int InitGL(GLvoid){ glShadeModel(GL_SMOOTH); glClearColor(0.0f, 0.0f, 0.0f, 0.5f); glClearDepth(1.0f); glEnable(GL_DEPTH_TEST); glDepthFunc(GL_LEQUAL); glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); return TRUE;}int DrawGLScene(GLvoid){ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glLoadIdentity(); return TRUE;}GLvoid KillGLWindow(GLvoid){ if (fullscreen) { ChangeDisplaySettings(NULL, 0); ShowCursor(TRUE); } if (hRC) { if(!wglMakeCurrent(NULL, NULL)) { MessageBox(NULL, "Release of DC and RC failed, a shutdown error has occured.", "OrcishRendering - ERROR", MB_OK|MB_ICONINFORMATION); } if (!wglDeleteContext(hRC)) { MessageBox(NULL, "Reneasing the Rendering Context failed, a shutdown error has occured.", "OrcishRendering - ERROR", MB_OK|MB_ICONINFORMATION); } hRC = NULL; } if (hDC && !ReleaseDC(hWnd, hDC)) { MessageBox(NULL, "Releasing the Device Context failed, a shutdown error has occured.", "OrcishRendering - ERROR", MB_OK|MB_ICONINFORMATION); hDC = NULL; } if (hWnd && !DestroyWindow(hWnd)) { MessageBox(NULL, "The Window Handle could not be released, a shutdown error has occured.", "OrcishRendering - ERROR", MB_OK|MB_ICONINFORMATION); hWnd = NULL; } if (!UnregisterClass("OpenGL", hInstance)) { MessageBox(NULL, "The Window Handle could not be unregistered, a shutdown error has occured.", "OrcishRendering - ERROR", MB_OK|MB_ICONINFORMATION); hInstance = NULL; }/*Create the OpenGL window''s parameterestitle, widht, height, bits, and the fullscreenflag.*/BOOL CreateGLWindow(char * title, int width, int height, int bits, bool fullscreenflag){ GLunit PixelFormat; WNDCLASS wc; DWORD dwExStyle; DWORD dwStyle; RECT WindowRect; WindowRect.left = (long)0; WindowRect.right = (long)width; WindowRect.top = (long)0; WindowRect.bottom = (long)height; fullscreen = fullscreenflag; hInstance = GetModuleHandle(NULL); wc.Style = CS_HREDAW | CS_VREDAW | CS_OWNDC; wc.lpfnWndProc = (WNDPROC) WndProc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = hInstance; wc.Icon = (HICON)LoadImage(hinstance,MAKEINTRESOURCE(IDI_PGRMICON),IMAGE_ICON,0,0,LR_DEFAULTSIZE); wc.Cursor = LoadCursor(NULL, IDC_ARROR); wc.hbrBackground = NULL; wc.lpszMenuName = "IDR_MAINMENU"; wc.lpszClassName = "OpenGL"; if (!RegisterClass(&wc)) { MessageBox(NULL, "Failure to Register the Window''s Class, an error has occured.", "OrcishRendering - ERROR", MB_OK|MB_ICONEXCLAMATION); return FALSE; } if (fullscreen) { DEVMODE dmScreenSettings; memset (&dmScreenSettings, 0, sizeof(dmScreenSettings)); dmScreenSettings.dmSize = sizeof(dmScreenSettings); dmScreenSettings.dmPelsWidth = width; dmScreenSettings.dmPelsHeight = height; dmScreenSettings.dmBitsPerPel = bits; dmScreenSettings.dmFields = DM_BITSPERPEL|DM_PELSWIDHT|DM_PELSHEIGHT; // // try setting fullscreen mode if (ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL) { // if the change fails... if (MessageBox(NULL, "An error occured while trying to switch to FullScreenMode. Use windowed mode instead?", "OrcishRendering - Error", MB_YESNO|MB_ICONEXCLIMATION) == IDYES) { fullscreen = FALSE; } else { // tell the user that the program will now close MessageBox(NULL, "The Program will not close.", "OrcishRendering - ERROR", MB_OK|MB_ICONSTOP); return FALSE; } }}if (fullscreen){ dwExStyle = WS_EX_APPWINDOW; dwStyle = WS_POPUP; ShowCursor(FALSE);}else{dwExStyle = WS_EX_APPWINDOW|WS_EX_WINDOWEDGE;dwStyle = WS_OVERLAPPEDWINDOW;}AdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle);// create the windowif (!(hWnd = CreateWindowEX( dwExStyle, "OpenGL", title, dwStyle|WS_CHIPSIBLINGS|WS_CHIPCHILDREN, 0, 0, WindowRect.right-WindowRect.left, WindowRect.bottom-WindowRect.top, NULL, wc.lpszMenuName = "IDR_MAINMENU";, // menu hInstance, NULL))) { KillGLWindow(); MessageBox(NULL, "An error occured while createing the window.", "OrcishRendering - ERROR", MB_OK|MB_ICONEXCLAMATION); return FALSE; } static PIXELFORMATDESCRIPTOR pfd = { sizeof(PIXELFORMATDESCRIPTOR), 1, PFD_DRAW_TO_WINDOW| PFD_SUPPORT_OPENGL| PFD_DOUBLEBUFFER, PFD_TYPE_RGBA, bits, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, 0, 0, PFD_MAIN_PLANE, 0, 0, 0, 0 }; if (!(hDC = GetDC(hWnd))) { KillGLWindow(); MessageBox(NULL, "A Device Context could not be created.", "OrcishRendering - ERROR", MB_OK|MB_ICONEXCLAMATION); return FALSE; } if (!(PixelFormat = ChoosePixelFormat(hDC, &pfd))) { KillGLWindow(); MessageBox(NULL, "A suitable PixelFormat could not be found.", "OrcishRendering - ERROR", MB_OK|MB_ICONEXCLAMATION); return FALSE; } if(!SetPixelFormat(hDC, PixelFormat, &pfd)) { KillGLWindow(); MessageBox(NULL, "Unable to set a Pixel Format.", "OrcishRendering - ERROR", MB_OK|MB)ICONEXCLAMATION); return FALSE; } if (!(hRC = wglCreateContext(hDC))) { KillGLWindow(); MessageBox(NULL, "Unable to create a Rendering Context.", "OrcishRendering - ERROR", MB_OK|MB_ICONEXCLAMATION); return FALSE; } if(!wglMakeCurrent(hDC, hRC)) { KillGLWindow(); MessageBox(NULL, "Unable to activate the GL Rendering Context.", "OrcishRendering - ERROR", MB_OK|MB_ICONEXCLAMATION); return FALSE; } ShowWindow(hWnd, SW_SHOW); SetForegroundWindow(hWnd); SetFocus(hWnd); ReSizeGLScene(width, height); if (!InitGL()) { KillGLWindow(); MessageBox(NULL,"Initialization Failed.","ERROR",MB_OK|MB_ICONEXCLAMATION); return FALSE; } return TRUE; }LRESULT CALLBACK WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { switch (uMsg) { case WM_ACTIVATE: { if (!HIWORD(wParam)) { active=TRUE; } else { active=FALSE; } return 0; } case WM_SYSCOMMAND: { switch (wParam) { case SC_SCREENSAVE: case SC_MONITORPOWER: return 0; } break; } case WM_CLOSE: { PostQuitMessage(0); return 0; } case WM_KEYDOWN: { keys[wParam] = TRUE; return 0; } case WM_KEYUP: { keys[wParam] = FALSE; return 0; } case WM_SIZE: { ReSizeGLScene(LOWORD(lParam),HIWORD(lParam)); return 0; } } return DefWindowProc(hWnd,uMsg,wParam,lParam);}int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { MSG msg; BOOL done=FALSE; if (MessageBox(NULL,"Would You Like To Run In Fullscreen Mode?", "Start FullScreen?",MB_YESNO|MB_ICONQUESTION)==IDNO) { fullscreen=FALSE; } // Create Our OpenGL Window if (!CreateGLWindow("NeHe''s OpenGL Framework",640,480,16,fullscreen)) { return 0; } while(!done) { if (PeekMessage(&msg,NULL,0,0,PM_REMOVE)) { if (msg.message==WM_QUIT) { done=TRUE; } else { TranslateMessage(&msg); DispatchMessage(&msg); } } else { if (active) { if (keys[VK_ESCAPE]) { done=TRUE; } else { DrawGLScene(); SwapBuffers(hDC); } } if (keys[VK_F1]) { keys[VK_F1]=FALSE; KillGLWindow(); fullscreen=!fullscreen; if (!CreateGLWindow("NeHe''s OpenGL Framework",640,480,16,fullscreen)) { return 0; } } } } KillGLWindow(); return (msg.wParam); }}
Oh, yea I forgot the errors :D.
:\Windows\Desktop\OrcishProductions\OrcishRendering\WinMain.cpp(40) : error C2061: syntax error : identifier ''UNIT''
C:\Windows\Desktop\OrcishProductions\OrcishRendering\WinMain.cpp(128) : error C2601: ''CreateGLWindow'' : local function definitions are illegal
C:\Windows\Desktop\OrcishProductions\OrcishRendering\WinMain.cpp(298) : error C2601: ''WndProc'' : local function definitions are illegal
C:\Windows\Desktop\OrcishProductions\OrcishRendering\WinMain.cpp(358) : error C2601: ''WinMain'' : local function definitions are illegal
Thanks,
orcblood.
:\Windows\Desktop\OrcishProductions\OrcishRendering\WinMain.cpp(40) : error C2061: syntax error : identifier ''UNIT''
C:\Windows\Desktop\OrcishProductions\OrcishRendering\WinMain.cpp(128) : error C2601: ''CreateGLWindow'' : local function definitions are illegal
C:\Windows\Desktop\OrcishProductions\OrcishRendering\WinMain.cpp(298) : error C2601: ''WndProc'' : local function definitions are illegal
C:\Windows\Desktop\OrcishProductions\OrcishRendering\WinMain.cpp(358) : error C2601: ''WinMain'' : local function definitions are illegal
Thanks,
orcblood.
Change
to
And change
to
After those changes are made, it should work...
Dillon
LRESULT CALLBACK WndProc(HWND, UNIT, WPARAM, LPARAM);
to
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
And change
if (!UnregisterClass("OpenGL", hInstance)) { MessageBox(NULL, "The Window Handle could not be unregistered, a shutdown error has occured.", "OrcishRendering - ERROR", MB_OK|MB_ICONINFORMATION); hInstance = NULL; }
to
if (!UnregisterClass("OpenGL", hInstance)) { MessageBox(NULL, "The Window Handle could not be unregistered, a shutdown error has occured.", "OrcishRendering - ERROR", MB_OK|MB_ICONINFORMATION); hInstance = NULL; }}
After those changes are made, it should work...
Dillon
This topic is closed to new replies.
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