C++ Win32: Displaying Animation via bitmap - c++

Question

I've written a solitare game and while the logic is solid and complete, the form is lacking. I wrote a animation function using bitmaps, and it's glitchy. It seems as if the bitmap printing function is too slow to keep up with the runtime processing speed. Here are the methods:
BOOL DrawBitmap(HDC hDC, INT x, INT y, INT width, INT height, HBITMAP hBitmap, DWORD dwROP)
{
HDC hDCBits;
BITMAP Bitmap;
BOOL bResult;
if (!hDC || !hBitmap)
return FALSE;
hDCBits = CreateCompatibleDC(hDC);
GetObject(hBitmap, sizeof(BITMAP), (LPSTR)&Bitmap);
SelectObject(hDCBits, hBitmap);
// Replace with StretchBlt call
//bResult = BitBlt(hDC, x, y, Bitmap.bmWidth, Bitmap.bmHeight, hDCBits, 0, 0, dwROP);
bResult = StretchBlt(hDC, x, y, width, height,
hDCBits, 0, 0, Bitmap.bmWidth, Bitmap.bmHeight, dwROP);
DeleteDC(hDCBits);
return bResult;
}
bool distortBMP (LPCWSTR szFileName, bool perlog, int xcoor, int ycoor, int h, int w, HDC hWinDC) {
HBITMAP hBitmap;
hBitmap = (HBITMAP)::LoadImage(NULL, szFileName, IMAGE_BITMAP, 0, 0,
LR_LOADFROMFILE);
if (hBitmap == NULL) {
::MessageBox(NULL, __T("LoadImage Failed"), __T("Error"), MB_OK);
return false;
}
if (perlog) {
DrawBitmap(hWinDC, xcoor, ycoor, w, h, hBitmap, SRCCOPY);
}
else {
BITMAP qBitmap;
int iReturn = GetObject(reinterpret_cast<HGDIOBJ>(hBitmap), sizeof(BITMAP),
reinterpret_cast<LPVOID>(&qBitmap));
if (!iReturn) {
::MessageBox(NULL, __T("GetObject Failed"), __T("Error"), MB_OK);
return false;
}
DrawBitmap(hWinDC, xcoor, ycoor, qBitmap.bmWidth * w, qBitmap.bmWidth * h, hBitmap, SRCCOPY);
}
return true;
}
bool animateCard(HDC hdc, LPCWSTR szFileName, int flip, int orix, int oriy, int desx, int desy, int frames) {
float dx = (float) desx - orix;
float dy = (float) desy - oriy;
int i = 0;
float percent = 0;
while (i < frames && flip == 0) {
i++;
percent = (float) (i * 100) / frames;
wchar_t secon[50];
wsprintf(secon, _T("%i, %i, %i, %i"), i,(int) percent, (int)dx, (int)dy);
//MessageBox(NULL, secon, _T("Alert"), MB_OK);
HBITMAP hBitmap;
hBitmap = (HBITMAP)::LoadImage(NULL, _T("screenShot.bmp"), IMAGE_BITMAP, 0, 0,
LR_LOADFROMFILE);
//Where "screenShot.bmp" represents a screenshot captures before the animation take place
BITMAP qBitmap;
int iReturn = GetObject(reinterpret_cast<HGDIOBJ>(hBitmap), sizeof(BITMAP),
reinterpret_cast<LPVOID>(&qBitmap));
if (!iReturn) {
::MessageBox(NULL, __T("GetObject Failed"), __T("Error"), MB_OK);
return false;
}
HBITMAP rBitmap;
rBitmap = (HBITMAP)::LoadImage(NULL, szFileName, IMAGE_BITMAP, 0, 0,
LR_LOADFROMFILE);
BITMAP zBitmap;
iReturn = GetObject(reinterpret_cast<HGDIOBJ>(rBitmap), sizeof(BITMAP),
reinterpret_cast<LPVOID>(&zBitmap));
if (!iReturn) {
::MessageBox(NULL, __T("GetObject Failed"), __T("Error"), MB_OK);
return false;
}
HBITMAP BitmapName;
BitmapName = (HBITMAP)::LoadImage(NULL, szFileName, IMAGE_BITMAP, 0, 0,
LR_LOADFROMFILE);
if (BitmapName == NULL) {
::MessageBox(NULL, __T("LoadImage Failed"), __T("Error"), MB_OK);
return false;
}
DrawBitmap(hdc, 0, 0, qBitmap.bmWidth, qBitmap.bmHeight, hBitmap, SRCCOPY);
DrawBitmap(hdc, (int)(orix + (dx * percent) / 100), (int)(oriy + (dy * percent) / 100), zBitmap.bmWidth, zBitmap.bmHeight, BitmapName, SRCCOPY);
//distortBMP(szFileName, false, (int) (orix + (dx * percent) / 100), (int) (oriy + (dy * percent) / 100), 1, 1, hdc);
}
return true;
}
I'm not sure if there is a faster way of displaying images. I'm open to suggestions there. If not, is there anything i can do to minimize processing time?