error with BITMAP

can anyone tell me what I am doing wrong here? After printing a number of times (ie going though this code alot) my program crashes.

void Word::ShowChar(CDC *dc, int picX, int picY, char Let)
{	
   BITMAP info;
   HBITMAP bmp;
   HDC bmpdc;
   HDC dcx;
   dcx = dc->m_hDC;
   bmp = (HBITMAP)::LoadImage(AfxGetResourceHandle(), MAKEINTRESOURCE(LETTERS),IMAGE_BITMAP, 0, 0, LR_DEFAULTCOLOR);
   bmpdc=CreateCompatibleDC(dcx);
   SelectObject(bmpdc,bmp);
   GetObject(bmp,sizeof(info),&info);
   DeleteObject(bmp);
   int width,height,srcx,srcy;
   width = 19;//with of the letter
   height = 30;//height of the letter
   srcx = 1; //Starting Value
   if ((Let == '' '')||((Let < ''N'')&&(Let >= ''A'')))
   {
    srcy = 1;
	if ((Let > ''A'')||(Let == '' ''))
		srcx = srcx + (20 * GetNum(Let));
   }
   else if ((Let == ''-'')||((Let <= ''Z'')&&(Let >= ''N'')))
   {
	   srcy = 37;
	   if ((Let > ''N'')||(Let == ''-''))
		   srcx = srcx + (20 * GetNum(Let));
   }
   else if ((Let <= ''9'')&&(Let >= ''0''))
   {
	   srcy = 73;
	   if (Let != ''0'')
		   srcx = srcx + (20 * GetNum(Let));
   }
   else
   {
	   srcy = 1;
	   Let = '' '';
	   srcx = srcx + (20 * GetNum(Let));
   }
   BitBlt(dcx,picX,picY,width,height,bmpdc,srcx,srcy,SRCCOPY);
   DeleteObject(bmpdc);
   DeleteObject(dcx);
}