获取对话框中的文本

问题描述

我可以使用哪些 Windows API 函数来获取对话框中的文本?例如，如果我有一个错误消息对话框的句柄，我如何获得显示的错误消息?

What Windows API function can I use to get text within a dialog? For example, if I had the handle of an error message dialog, how could I get the displayed error message?

推荐答案

如果我正确理解了你的问题，你的问题就很简单了.从 Visual Studio 工具 菜单中打开 Spy++.然后按 Ctrl + F 以接收用于查找窗口的对话框.拖拽将查找工具"放在要从中读取文本的对话框内的控件上；查看窗口的属性，控件ID"字段是您需要的.

If I correctly understand your question, your problem is very easy. Open Spy++ from the Visual Studio Tools menu. Then press Ctrl + F to receive a dialog for finding windows. Drag & drop the "Finder tool" on the control inside the dialog box from which you want to read the text; look at properties of the window, the field "Control ID" is what you need.

如果您有对话窗口 (HWND hDlg) 的句柄，您应该使用 GetDlgItemText 函数(请参阅 http://msdn.microsoft.com/en-us/library/ms645489(VS.85).aspx)

If you have a handle of the Dialog Window (HWND hDlg) you should use the GetDlgItemText function (see http://msdn.microsoft.com/en-us/library/ms645489(VS.85).aspx)

UINT GetDlgItemText(HWND hDlg,
    int nIDDlgItem,
    LPTSTR lpString,
    int nMaxCount
);

阅读文本.作为 nIDDlgItem 参数，您应该放置控件的标识符.这是您使用 Spy++ 找到的值.

to read the text. As a nIDDlgItem parameter you should place the identifier of the control. It is the value which you have found using Spy++.

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