Below is the code for a simple program I've put together. This is essentially the code Bricks1 from Petzold 5th edition. I also have a BMP file and a resource file referring to the BMP file. All the names for the BMP resource seem to be OK, however, I get an error every time I run this:
"The specified resource name cannot be found in the image file."
Any ideas??
-Kirk
I added the contents of the resource file (Script1.rc). bitmap1.bmp is present in the project's base directory.
#include <windows.h>
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName [] = TEXT ("TestBMP");
HWND hwnd;
MSG msg;
WNDCLASS wndclass;
wndclass.style = CS_HREDRAW | CS_VREDRAW;
wndclass.lpfnWndProc=WndProc;
wndclass.cbClsExtra=0;
wndclass.cbWndExtra=0;
wndclass.hInstance=hInstance;
wndclass.hIcon=LoadIcon(NULL, IDI_APPLICATION);
wndclass.hCursor=LoadCursor(NULL,IDC_ARROW);
wndclass.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
wndclass.lpszMenuName=NULL;
wndclass.lpszClassName=szAppName;
if (!RegisterClass(&wndclass))
{
MessageBox(NULL, TEXT("This program requires WinNT!"), szAppName, MB_ICONERROR);
return 0;
}
hwnd=CreateWindow(szAppName, TEXT("Test Bitmap"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL);
ShowWindow(hwnd, iCmdShow);
UpdateWindow(hwnd);
while (GetMessage(&msg,NULL,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static HBITMAP hBitmap;
static int cxClient, cyClient, cxSource, cySource;
BITMAP bitmap;
HDC hdc, hdcMem;
HINSTANCE hInstance;
int x,y;
PAINTSTRUCT ps;
LPVOID lpMsgBuf;
switch(message)
{
case WM_CREATE:
hInstance = ((LPCREATESTRUCT) lParam)->hInstance;
hBitmap = LoadBitmap(hInstance, TEXT("TestBMP"));
if (hBitmap == NULL)
{
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
GetLastError(),
0, // Default language
(LPTSTR) &lpMsgBuf,
0,
NULL
);
MessageBox (NULL, (LPCTSTR)lpMsgBuf, "Error", MB_OK | MB_ICONINFORMATION);
}
GetObject(hBitmap, sizeof(BITMAP), &bitmap);
cxSource=bitmap.bmWidth;
cySource=bitmap.bmHeight;
return 0;
case WM_SIZE:
cxClient = LOWORD(lParam);
cyClient = HIWORD(lParam);
return 0;
case WM_PAINT:
hdc = BeginPaint(hwnd, &ps);
hdcMem = CreateCompatibleDC(hdc);
SelectObject(hdcMem, hBitmap);
for (y=0; y<cyClient; y+=cySource)
for(x=0; x<cxClient; x+=cxSource)
{
BitBlt(hdc, x, y, cxSource, cySource, hdcMem, 0,0,SRCCOPY);
}
DeleteDC(hdcMem);
EndPaint(hwnd, &ps);
return 0;
case WM_DESTROY:
DeleteObject(hBitmap);
PostQuitMessage(0);
return 0;
}
return DefWindowProc(hwnd, message, wParam, lParam);
}
Here's the resource file contents:
//Microsoft Developer Studio generated resource script.
//
#include "resource.h"
#define APSTUDIO_READONLY_SYMBOLS
/////////////////////////////////////////////////////////////////////////////
//
// Generated from the TEXTINCLUDE 2 resource.
//
#include "afxres.h"
/////////////////////////////////////////////////////////////////////////////
#undef APSTUDIO_READONLY_SYMBOLS
/////////////////////////////////////////////////////////////////////////////
// English (U.S.) resources
#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
#ifdef _WIN32
LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US
#pragma code_page(1252)
#endif //_WIN32
#ifdef APSTUDIO_INVOKED
/////////////////////////////////////////////////////////////////////////////
//
// TEXTINCLUDE
//
1 TEXTINCLUDE DISCARDABLE
BEGIN
"resource.h\0"
END
2 TEXTINCLUDE DISCARDABLE
BEGIN
"#include ""afxres.h""\r\n"
"\0"
END
3 TEXTINCLUDE DISCARDABLE
BEGIN
"\r\n"
"\0"
END
#endif // APSTUDIO_INVOKED
/////////////////////////////////////////////////////////////////////////////
//
// Bitmap
//
TestBMP BITMAP DISCARDABLE "bitmap1.bmp"
#endif // English (U.S.) resources
/////////////////////////////////////////////////////////////////////////////
#ifndef APSTUDIO_INVOKED
/////////////////////////////////////////////////////////////////////////////
//
// Generated from the TEXTINCLUDE 3 resource.
//
/////////////////////////////////////////////////////////////////////////////
#endif // not APSTUDIO_INVOKED
