设置另一个程序的列表视图所选项目

发布于 2024-07-24 18:39:16 字数 666 浏览 3 评论 0原文

我希望能够选择在另一个程序的列表视图中选择哪个项目（我无权访问其代码）。实际上，它是一个 SysListView32，我认为它是相同的。我已经有了下面的代码，不幸的是，尽管编译了，但它似乎什么也没做（尽管 SendMessage() 返回 1）。

process=OpenProcess(PROCESS_VM_OPERATION|PROCESS_VM_READ|PROCESS_VM_WRITE|PROCESS_QUERY_INFORMATION, FALSE, 0xD14); 

 _lvi=(LVITEM*)VirtualAllocEx(process, NULL, sizeof(LVITEM), MEM_COMMIT, PAGE_READWRITE); 

 lvi.state = LVIS_SELECTED | LVIS_FOCUSED;
 lvi.stateMask = LVIS_SELECTED | LVIS_FOCUSED; 

 WriteProcessMemory(process, _lvi, &lvi, sizeof(LVITEM), NULL); 
 int abc = ::SendMessage((HWND)0x00050D30, LVM_SETITEMSTATE, (WPARAM)2, (LPARAM)_lvi); 
 VirtualFreeEx(process, _lvi, 0, MEM_RELEASE);

原文

I want to be able to select which item is selected in another program's list view(I don't have access to its code). Actually, it is an SysListView32, which I assume is the same. I already have the following code, which unfortunely despite compiling, seems to do nothing (although SendMessage() returns 1).

process=OpenProcess(PROCESS_VM_OPERATION|PROCESS_VM_READ|PROCESS_VM_WRITE|PROCESS_QUERY_INFORMATION, FALSE, 0xD14); 

 _lvi=(LVITEM*)VirtualAllocEx(process, NULL, sizeof(LVITEM), MEM_COMMIT, PAGE_READWRITE); 

 lvi.state = LVIS_SELECTED | LVIS_FOCUSED;
 lvi.stateMask = LVIS_SELECTED | LVIS_FOCUSED; 

 WriteProcessMemory(process, _lvi, &lvi, sizeof(LVITEM), NULL); 
 int abc = ::SendMessage((HWND)0x00050D30, LVM_SETITEMSTATE, (WPARAM)2, (LPARAM)_lvi); 
 VirtualFreeEx(process, _lvi, 0, MEM_RELEASE);

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哀由 2024-07-31 18:39:16

以下代码对我来说就像一个魅力：

HANDLE hProcess = OpenProcess(PROCESS_VM_WRITE | PROCESS_VM_OPERATION, FALSE, 0x0000c130);
LPVOID epLvi = VirtualAllocEx(hProcess, NULL, 4096, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE);

LVITEM lvi;
lvi.state = LVIS_FOCUSED | LVIS_SELECTED;
lvi.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
SIZE_T cbWritten = 0;
WriteProcessMemory(hProcess, epLvi, &lvi, sizeof(lvi), &cbWritten);
DWORD dw = SendMessage((HWND)0x00020C4C, LVM_SETITEMSTATE, 1, (LPARAM)epLvi);

VirtualFreeEx(hProcess, epLvi, 4096, MEM_DECOMMIT | MEM_RELEASE);
CloseHandle(hProcess);

您的代码可能无法工作有多种原因：

正如 Michael Dunn 提到的，您需要保留并提交地址空间。有趣的是，您的示例仅尝试MEM_COMMIT内存，然后MEM_RELEASE（这与MEM_RESERVE相反）；
您可能对拥有该窗口的进程没有足够的权限；
您的进程和目标进程可能具有不同的位数。在这种情况下，可能需要一些结构尺寸技巧。

如果所有这些都不起作用，我建议尝试不同的方法： IAccessible 在这里可能会有所帮助。这里通常的免责声明：弄乱其他进程窗口和地址空间需要谨慎的方法，并且应该尽可能避免。

The following code works like a charm for me:

HANDLE hProcess = OpenProcess(PROCESS_VM_WRITE | PROCESS_VM_OPERATION, FALSE, 0x0000c130);
LPVOID epLvi = VirtualAllocEx(hProcess, NULL, 4096, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE);

LVITEM lvi;
lvi.state = LVIS_FOCUSED | LVIS_SELECTED;
lvi.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
SIZE_T cbWritten = 0;
WriteProcessMemory(hProcess, epLvi, &lvi, sizeof(lvi), &cbWritten);
DWORD dw = SendMessage((HWND)0x00020C4C, LVM_SETITEMSTATE, 1, (LPARAM)epLvi);

VirtualFreeEx(hProcess, epLvi, 4096, MEM_DECOMMIT | MEM_RELEASE);
CloseHandle(hProcess);

There are several reasons why your code might not work:

as Michael Dunn mentioned, you need to reserve and commit the address space. Interesting is that your example only attempts to MEM_COMMIT the memory, but then MEM_RELEASE's it (which is opposite to MEM_RESERVE);
you might have not enough privileges to the process which owns the window;
your process and the target process might be of a different bitness. Some structure size tricks might be required in this case.

If all that doesn't work, I'd recommend trying a different approach: IAccessible might be helpful here. Usual disclaimers here: messing with other processes windows and address space requires careful approach and should be avoided if possible.

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