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我正在编写一个自定义模块来使用专有软件。（该软件已经停产，我没有它的源代码。）我的模块将作为一个单独的进程运行。它的目标是通过这个专有软件使操作自动化。为此，我需要能够模拟保存该软件的输出。我可以通过模拟工具栏按钮单击来调出其另存为对话框：

在此处输入图像描述

然后我尝试将“另存为类型”组合框更改为所需的文件类型，添加要保存到的文件路径，并模拟单击“保存”按钮。我想出了以下代码来做到这一点：

//All I have to work with are the following window handles:

//HWND hWndFileName = file name window handle
//HWND hWndSaveAsType = save as type window handle
//HWND hWndSaveBtn = Save button handle

DWORD dwComboIDSaveAsType = ::GetWindowLong(hWndSaveAsType, GWL_ID);
HWND hParWnd = ::GetParent(hWndSaveAsType);

//Select index for file type
int nSaveAsIndex = 3;
::SendMessage(hWndSaveAsType, CB_SETCURSEL, nSaveAsIndex, 0);
::SendMessage(hParWnd, WM_COMMAND, 
    (dwComboIDSaveAsType & 0xffff) | ((((DWORD)CBN_SELCHANGE) << 16) & 0xFFFF0000),
    (LPARAM)hWndSaveAsType);

//Set path to save
::SendMessage(hWndFileName, WM_SETTEXT, NULL, 
    (LPARAM)L"C:\\Test\\test file");

//Simulate Save button click
::SendMessage(hWndSaveBtn, BM_CLICK, 0, 0);

有趣的是，上面的代码实现了目标（通过直观地更改“另存为类型”组合框）但是当文件被保存时，它仍然具有旧的或最初选择的类型，即“快速报告文件（.QRP）”。

知道如何解决这个问题吗？

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1 回答 1

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我想我明白了。显然我也需要发送CBN_SELENDOK给父母。所以应该是这样的：

//All I have to work with are the following window handles:

//HWND hWndFileName = file name window handle
//HWND hWndSaveAsType = save as type window handle
//HWND hWndSaveBtn = Save button handle

DWORD dwComboIDSaveAsType = ::GetWindowLong(hWndSaveAsType, GWL_ID);
HWND hParWnd = ::GetParent(hWndSaveAsType);

//Select index for file type
int nSaveAsIndex = 3;
::SendMessage(hWndSaveAsType, CB_SETCURSEL, nSaveAsIndex, 0);
::SendMessage(hParWnd, WM_COMMAND, 
    MAKEWPARAM(dwComboIDSaveAsType, CBN_SELENDOK),
    (LPARAM)hWndSaveAsType);
::SendMessage(hParWnd, WM_COMMAND, 
    MAKEWPARAM(dwComboIDSaveAsType, CBN_SELCHANGE),
    (LPARAM)hWndSaveAsType);

//Set path to save
::SendMessage(hWndFileName, WM_SETTEXT, NULL, 
    (LPARAM)L"C:\\Test\\test file");

//Simulate Save button click
::SendMessage(hWndSaveBtn, BM_CLICK, 0, 0);
于 2015-03-10T02:39:41.670 回答