VC++ 桌面背景设置

#include<windows.h> #include"resource.h" BOOL CALLBACK DialogProc(HWND hwnd,UINT message,WPARAM wparam,LPARAM lparam); char lpPath[260]={0}; OPENFILENAME file={0}; int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPreInst,LPSTR lpCmdLine,int nShowCmd) { DialogBox(hInstance,(LPSTR)IDD_tianj03,NULL,(DLGPROC)DialogProc); return 0; } BOOL CALLBACK DialogProc(HWND hwnd,UINT message,WPARAM wparam,LPARAM lparam) { switch(message) { case WM_INITDIALOG: return 1; case WM_CLOSE: PostQuitMessage(0); return 1; case WM_COMMAND: switch(LOWORD(wparam)) { case IDOK: SendDlgItemMessage(hwnd,IDC_EDIT,WM_GETTEXT,260,(LPARAM)lpPath); if(lstrlen(lpPath)==0) MessageBox(hwnd,"请选择文件","提示",MB_OK); else SystemParametersInfo(SPI_SETDESKWALLPAPER,0,lpPath,0); return 1; case IDC_BROWSE: file.lStructSize=sizeof(OPENFILENAME); file.lpstrFile=lpPath; file.nMaxFile=260; file.lpstrFilter="Bmp File(*.bmp)\0*.bmp\0All Files\0*.*\0\0"; file.nFilterIndex=1; if(GetOpenFileName(&file)!=0) { lstrcpy(lpPath,file.lpstrFile); SendDlgItemMessage(hwnd,IDC_EDIT,WM_SETTEXT,0,(LPARAM)lpPath); } return 1; case IDQUIT: PostQuitMessage(0); return 1; } } return FALSE; }