I''m not sure whether this should go in the DirectX forum or Begginers, but I''m sure quite a few people should be able to fix it..
I Made a CSprite Class, which im going to paste below:
#include "CSprite.h"
CSprite::CSprite()
{
lpDD7 = NULL;
}
CSprite::~CSprite()
{
lpddsTileset->Release();
lpddsTileset = NULL;
lpDD7->Release();
lpDD7 = NULL;
}
CSprite::DrawHBitmap(HBITMAP hBitmap, int x, int y, int width, int height)
{
HDC hdcImage;
HDC hdc;
BITMAP bm;
if (lpddsTileset == NULL || hBitmap == NULL)
return (FALSE);
lpddsTileset->Restore();
if (!(hdcImage = CreateCompatibleDC(NULL)))
return (FALSE);
if (!(SelectObject(hdcImage, hBitmap)))
return (FALSE);
if (!(GetObject(hBitmap, sizeof(bm), &bm)))
return (FALSE);
width = width == 0 ? bm.bmWidth : width;
height = height == 0 ? bm.bmHeight : height;
if (!(lpddsTileset->GetDC(&hdc)))
return (FALSE);
if (!(BitBlt(hdc, x, y, width, height, hdcImage, 0, 0, SRCCOPY)))
return (FALSE);
lpddsTileset->ReleaseDC(hdc);
DeleteDC(hdcImage);
return (TRUE);
}
CSprite::CreateSurface(int xs, int ys)
{
DDSURFACEDESC2 ddsd;
ZeroMemory(&ddsd, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
ddsd.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT | DDSD_CKSRCBLT;
ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
ddsd.dwWidth = xs;
ddsd.dwHeight = ys;
ddsd.ddckCKSrcBlt.dwColorSpaceLowValue = 0;
ddsd.ddckCKSrcBlt.dwColorSpaceHighValue = 0;
if (FAILED(lpDD7->CreateSurface(&ddsd, &lpddsTileset, NULL)))
{
MessageBox(NULL, "CreateSurface Failed", "Error", MB_OK);
return (FALSE);
}
return (TRUE);
}
CSprite::CreateBitmapSurface(char *fname, int xs, int ys)
{
HBITMAP hBitmap;
CreateSurface(xs, ys);
hBitmap = (HBITMAP)LoadImage(NULL, fname, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
DrawHBitmap(hBitmap, 0, 0, xs, ys);
DeleteObject(hBitmap);
return (TRUE);
}
CSprite::Draw(int X, int Y)
{
return (1);
}
The Declaration is:
#ifndef CSprite_
#define CSprite_
#include <ddraw.h>
class CSprite
{
public:
CSprite();
~CSprite();
// Accessor Methods
LPDIRECTDRAWSURFACE7 GetSurface() { return lpddsTileset; }
LPDIRECTDRAW7 GetlpDD7() { return lpDD7; }
// Public Methods
int CreateBitmapSurface(char *fname, int xs, int ys);
void SetlpDD7 (LPDIRECTDRAW7 lpdd7) { lpDD7 = lpdd7; }
int Draw(int X, int Y);
private:
// Members
LPDIRECTDRAWSURFACE7 lpddsTileset;
LPDIRECTDRAW7 lpDD7;
// Private Methods
int CreateSurface(int xs, int ys);
int DrawHBitmap(HBITMAP hBitmap, int x, int y, int width, int height);
};
#endif
Now what happens is that when everything is setup, a bitmap should be loaded and put in the lpddsTileset member. I have directX set up with another class, and now i want to perform a blt().. this is what i use:
// Initialize DirectDraw 7
CDDW *pDirectDraw = new CDDW(hWnd);
pDirectDraw->CDDW_SetCooperativeLevel();
pDirectDraw->CDDW_SetVideoMode(640,480,16);
pDirectDraw->CDDW_CreateNormalSurfaces();
pDirectDraw->CDDW_AttachClipper(0,0,640,480);
// Intialize Test Sprite
CSprite *pCool = new CSprite();
pCool->SetlpDD7(pDirectDraw->CDDW_GetlpDD7());
if (!(pCool->CreateBitmapSurface("Cool.bmp",63,63)))
{
MessageBox(NULL, "uh oh!", "DAMN", MB_OK);
}
RECT dest, src;
SetRect(&src, 0, 0, 63, 63); // the coordinates of the tile
SetRect(&dest, 0, 0, 63, 63); // where you want it to end up on the back buffer
while (TRUE)
{
// Process All Pending Window Messages
if (PeekMessage( &Msg, NULL, 0, 0, PM_NOREMOVE ))
{
TranslateMessage(&Msg);
DispatchMessage(&Msg);
}
if (KEYSTATE(VK_ESCAPE) == TRUE)
{
break;
}
pDirectDraw->CDDW_GetlpDDSBack()->Blt(&dest,pCool->GetSurface(),&src,DDBLT_WAIT,NULL);
pDirectDraw->CDDW_GetlpDDSPrimary()->Flip(NULL,DDFLIP_WAIT);
}
delete pDirectDraw;
delete pCool;
return (Msg.wParam);
}
I''ve done millions of error-checking things but nothing seems to work..The cooperative level is set and everything compiles fine (no warnings) but i just get a black screen...Is it my CSprite bitmap loading that is wrong or my DirectDraw Wrapper?
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