如何在不使用WndProc的情况下编写对话框消息循环？ [英] How to program dialog message loop without using WndProc?

问题描述

大家好，

Hi all,

我想在InstallScript中编写一个简单的Win32样式的消息循环，这种语言不支持函数指针，所以我可能不会在那里使用WndProc。

I want to program a simple Win32 style message loop in InstallScript and this language that doesn't support function pointers, so I may not use WndProc there.

有没有办法在C ++中有类似于WaitOnDialog函数的东西？

Is there a way to have something analogous to WaitOnDialog function in C++?

这是一个常见的Win32对话框消息循环：

This is a common Win32 dialog message loop:

hWnd = CreateDialog(hInstance, MAKEINTRESOURCE(IDD_MYDIALOG), 0, WndProc);

ShowWindow(hWnd,SW_SHOW);
UpdateWindow(hWnd);

while ((bRet = GetMessage(&msg, NULL, 0, 0)) != 0)
{
    if (bRet == -1)
    {
        // Handle the error and possibly exit
    }
    else if (!IsWindow(hwndGoto) || !IsDialogMessage(hwndGoto, &msg))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
}

因此它在InstallScript中查找：

And thus it looks in InstallScript:

nResult  = DefineDialog (szDialogName, hInstance, szDLLName,RES_DIALOG_ID, szDialog, 0,HWND_INSTALL, DLG_MSG_ALL|DLG_CENTERED);

bDone = FALSE;

repeat
    nCmdValue = WaitOnDialog(szDialogName);
    switch (nCmdValue)
        case DLG_CLOSE:
             Do (EXIT);
        case DLG_ERR:
             MessageBox ("Unable to display dialog. Setup canceled.", SEVERE);
             abort;
        case DLG_INIT:
             hwndDlg = CmdGetHwndDlg("szDialogName");
        case RES_PBUT_CANCEL:
             Do (EXIT);
        case RES_PBUT_NEXT:
             bDone = TRUE;
        case RES_PBUT_BACK:
             bDone = TRUE;
   endswitch;
until(bDone);

EndDialog (szDialogName);
ReleaseDialog (szDialogName); 

推荐答案

markolog123写道：

markolog123 wrote:

我想在InstallScript中编写一个简单的Win32样式消息循环

I want to program a simple Win32 style message loop in InstallScript

您可能在致力于InstallShield支持的论坛中获得更好的运气：

You might have better luck in forums dedicated to InstallShield support:

http://community.flexerasoftware.com/

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