为custom dialog box class定义两个窗口过程

#include <windows.h> #include "resource.h" LRESULT CALLBACK WindowProc( HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam ) { switch ( uMsg ) { case WM_CLOSE: ::PostQuitMessage(0); break; } return ::DefDlgProc(hwnd, uMsg, wParam, lParam);//注意这里不是DefWindowProc } BOOL CALLBACK DialogProc( HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam ) { switch ( uMsg ) { case WM_COMMAND: if ( LOWORD(wParam) == IDOK ) EndDialog(hwndDlg, 1); break; } return FALSE; } int WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow ) { WNDCLASSEX wc; wc.cbSize = sizeof(wc); wc.style = CS_VREDRAW | CS_HREDRAW;//可为赋值为0，但不能不赋值！ wc.lpfnWndProc = WindowProc; wc.cbClsExtra = 0; wc.cbWndExtra = DLGWINDOWEXTRA; wc.hInstance = hInstance; wc.hIcon = ::LoadIcon(NULL, IDI_APPLICATION); wc.hCursor = ::LoadCursor(NULL, IDC_ARROW); wc.hbrBackground = ::CreateSolidBrush(RGB(255,255,255)); wc.lpszMenuName = NULL; wc.lpszClassName = "mydlgclass"; wc.hIconSm = NULL; ::RegisterClassEx(&wc); //消息会依经过WindowProc与DialogProc DialogBox(hInstance, MAKEINTRESOURCE(IDD_DIALOG1), NULL, DialogProc); }

rc文件：

IDD_DIALOG1 DIALOGEX 0, 0, 316, 186 STYLE DS_SETFONT | DS_MODALFRAME | DS_FIXEDSYS | DS_CENTER | WS_POPUP | WS_CAPTION | WS_SYSMENU CAPTION "Dialog" CLASS "mydlgclass" FONT 8, "MS Shell Dlg", 400, 0, 0x1 BEGIN DEFPUSHBUTTON "OK",IDOK,205,165,50,14 PUSHBUTTON "Cancel",IDCANCEL,259,165,50,14 END