LPSIZE Dimension;
GetBitmapDimensionEx(bmp,Dimension);
StretchBlt(
lpdis->hDC, // destination DC
lpdis->rcItem.left, // x upper left
lpdis->rcItem.top, // y upper left
// The next two lines specify the width and
// height.
lpdis->rcItem.right - lpdis->rcItem.left,
lpdis->rcItem.bottom - lpdis->rcItem.top,
hdcMem, // source device context
0, 0, // x and y upper left
Dimension->cx,
Dimension->cy, // source bitmap height
SRCCOPY);
mais ca marche po le compilo di ke dimension po initialisé