C++ Win32api，創建無資源對話框

Question

我是win32api編程的新手。我想知道如何在非gui程序中創建一個對話框（沒有創建任何資源）。

我見過一些CreateIndirect函數的例子。這是最好的方法嗎？任何其他方式？

謝謝！

Answer 1

你會使用DialogBoxIndirectParam或CreateDialogIndirectParam

有了這些功能，它更多的工作，但它可以嵌入一個簡單的對話框模板代碼中的一個初始化的靜態結構。對話框模板的格式具有一些內置的可變大小的數組，因此必須具有特定於特定對話框的結構聲明，但對於調試代碼而言，這可以正常工作。

像這樣的事情

#define DLGTITLE L"Debug" 
#define DLGFONT L"MS Sans Serif" 
#define DLGAPPLY L"&Apply" 
#define DLGCANCEL L"&Cancel" 
#define NUMCHARS(aa) (sizeof(aa)/sizeof((aa)[0])) 
#define IDC_BITMAP 99 

#pragma pack(push, 4)     
static struct { // dltt 

    DWORD style; 
    DWORD dwExtendedStyle; 
    WORD ccontrols; 
    short x; 
    short y; 
    short cx; 
    short cy; 
    WORD menu;   // name or ordinal of a menu resource 
    WORD windowClass; // name or ordinal of a window class 
    WCHAR wszTitle[NUMCHARS(DLGTITLE)]; // title string of the dialog box 
    short pointsize;  // only if DS_SETFONT flag is set 
    WCHAR wszFont[NUMCHARS(DLGFONT)]; // typeface name, if DS_SETFONT is set 

    // control info 
    // 
    struct { 
     DWORD style; 
     DWORD exStyle; 
     short x; 
     short y; 
     short cx; 
     short cy; 
     WORD id; 
     WORD sysClass;  // 0xFFFF identifies a system window class 
     WORD idClass;  // ordinal of a system window class 
     WCHAR wszTitle[NUMCHARS(DLGAPPLY)]; 
     WORD cbCreationData; // bytes of following creation data 
//  WORD wAlign;   // align next control to DWORD boundry. 
    } apply; 

    struct { 
     DWORD style; 
     DWORD exStyle; 
     short x; 
     short y; 
     short cx; 
     short cy; 
     WORD id; 
     WORD sysClass;  // 0xFFFF identifies a system window class 
     WORD idClass;  // ordinal of a system window class 
     WCHAR wszTitle[NUMCHARS(DLGCANCEL)]; 
     WORD cbCreationData; // bytes of following creation data 
    } cancel; 

    struct { 
     DWORD style; 
     DWORD exStyle; 
     short x; 
     short y; 
     short cx; 
     short cy; 
     WORD id; 
     WORD sysClass;  // 0xFFFF identifies a system window class 
     WORD idClass;  // ordinal of a system window class 
     WCHAR wszTitle[1]; // title string or ordinal of a resource 
     WORD cbCreationData; // bytes of following creation data 
    } bitmap; 

    } g_DebugDlgTemplate = { 

    WS_POPUP | WS_VISIBLE | WS_CAPTION | WS_SYSMENU // style 0x94c800c4 
    | DS_MODALFRAME | DS_3DLOOK 
    | DS_SETFONT, 
    0x0,  // exStyle; 
    3,   // ccontrols 
    0, 0, 300, 180, 
    0,      // menu: none 
    0,      // window class: none 
    DLGTITLE,    // Window caption 
    8,      // font pointsize 
    DLGFONT, 

     { 
     WS_CHILD | WS_VISIBLE | WS_TABSTOP | WS_GROUP | BS_DEFPUSHBUTTON, // 0x50030001 
     WS_EX_NOPARENTNOTIFY, // 0x4 
     190,160,50,14, 
     IDOK, 
     0xFFFF, 0x0080, // button 
     DLGAPPLY, 0, 
     }, 

     { 
     WS_CHILD | WS_VISIBLE | WS_TABSTOP | BS_PUSHBUTTON, // 0x50010000 
     WS_EX_NOPARENTNOTIFY, // 0x4 
     244,160,50,14, 
     IDCANCEL, 
     0xFFFF, 0x0080, // button 
     DLGCANCEL, 0, 
     }, 

     { 
     WS_CHILD | WS_VISIBLE | WS_GROUP | SS_LEFT, // 0x50020000 
     WS_EX_NOPARENTNOTIFY, // 0x4 
     6,6,288,8, 
     IDC_BITMAP, 
     0xFFFF, 0x0082, // static 
     L"", 0, 
     }, 
    }; 

#pragma pack(pop) 

INT_PTR CALLBACK Debug_DlgProc (
    HWND hwnd, 
    UINT uMsg, 
    WPARAM wParam, 
    LPARAM lParam) 
{ 
    switch (uMsg) 
     { 
     case WM_INITDIALOG: 
      { 
      } 
      break; 

     case WM_COMMAND: 
      { 
      UINT wId = LOWORD(wParam); 
      if (wId == IDOK || wId == IDCANCEL) 
       { 
       EndDialog (hwnd, wId); 
       } 
      } 
      break; 

     case WM_CLOSE: 
      EndDialog(hwnd, IDCANCEL); 
      break; 
     } 

    return FALSE; 
} 


LRESULT DoDebugDialog(HWND hwndApp, LPVOID pvData) 
{ 
    HINSTANCE hinst = hwndApp ? (HINSTANCE)(LONG_PTR)GetWindowLongPtr(hwndApp, GWLP_HINSTANCE) 
          : (HINSTANCE)GetModuleHandle(NULL); 

    return DialogBoxIndirectParamW (hinst, (LPCDLGTEMPLATEW)&g_DebugDlgTemplate, hwndApp, 
            Debug_DlgProc, (LPARAM)pvData); 
} 

一個更復雜的解決方案是建立在內存中的對話框模板結構，但這種行之有效的調試代碼在對話框本身並沒有太大變化。