c#.NET 怎样通过调用win32 api 获取 vb 程序窗口上 VSFLEXGRID 里面的数据

luheng1090 2010-11-02 10:15:05

下面这是从网上复制过来的获取其他程序 listview 里面的数据。。。。但是没有说明。。我没看懂

希望高手帮忙讲解或者告诉告诉我怎么样获取vb程序里 vsflexgrid控件里的数据（已知控件句柄）
会的+QQ78116846 或者帮忙写个已知控件句柄获取vsflexgrid 的类也OK 先谢谢了不知道有没有人能帮了我
const uint LVM_FIRST = 0x1000;
const uint HDM_FIRST = 0x1200;
const uint LVM_GETITEMCOUNT = LVM_FIRST + 4;
const uint LVM_GETITEMW = LVM_FIRST + 75;
const uint LVM_GETHEADER = LVM_FIRST + 31;
const uint HDM_GETITEMCOUNT = HDM_FIRST + 0;

[DllImport("user32.DLL")]
static extern int SendMessage(IntPtr hWnd, uint Msg, int wParam, int lParam);
[DllImport("user32.DLL")]
static extern IntPtr FindWindow(string lpszClass, string lpszWindow);
[DllImport("user32.DLL")]
static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);
[DllImport("user32.dll")]
static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint dwProcessId);

const uint PROCESS_VM_OPERATION = 0x0008;
const uint PROCESS_VM_READ = 0x0010;
const uint PROCESS_VM_WRITE = 0x0020;

[DllImport("kernel32.dll")]
static extern IntPtr OpenProcess(uint dwDesiredAccess, bool bInheritHandle, uint dwProcessId);
const uint MEM_COMMIT = 0x1000;
const uint MEM_RELEASE = 0x8000;

const uint MEM_RESERVE = 0x2000;
const uint PAGE_READWRITE = 4;

[DllImport("kernel32.dll")]
static extern IntPtr VirtualAllocEx(IntPtr hProcess, IntPtr lpAddress, uint dwSize, uint flAllocationType, uint flProtect);

[DllImport("kernel32.dll")]
static extern bool VirtualFreeEx(IntPtr hProcess, IntPtr lpAddress, uint dwSize, uint dwFreeType);

[DllImport("kernel32.dll")]
static extern bool CloseHandle(IntPtr handle);

[DllImport("kernel32.dll")]
static extern bool WriteProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, IntPtr lpBuffer, int nSize, ref uint vNumberOfBytesRead);

[DllImport("kernel32.dll")]
static extern bool ReadProcessMemory(IntPtr hProcess, IntPtr lpBaseAddress, IntPtr lpBuffer, int nSize, ref uint vNumberOfBytesRead);

public struct LVITEM
{
public int mask;
public int iItem;
public int iSubItem;
public int state;
public int stateMask;
public IntPtr pszText;
public int cchTextMax;
public int iImage;
public IntPtr lParam;
public int iIndent;
public int iGroupId;
public int cColumns;
public IntPtr puColumns;
}

int LVIF_TEXT = 0x0001;几个操作LISTVIEW的自定义函数

/// <summary>
/// 获取 ListView 的行数
/// </summary>
/// <param name="hwnd"></param>
/// <returns></returns>
int ListView_GetItemCount(IntPtr hwnd)
{
return SendMessage(hwnd, LVM_GETITEMCOUNT, 0, 0);
}

/// <summary>
/// 获取 ListView 的标题栏句柄
/// </summary>
/// <param name="hwnd"></param>
/// <returns></returns>
private IntPtr ListView_GetHeader(IntPtr hwnd)
{
return (IntPtr)SendMessage(hwnd, LVM_GETHEADER, 0, 0);
}

/// <summary>
/// 获取 ListView 的标题栏的列数
/// </summary>
/// <param name="header"></param>
/// <returns></returns>
private int Header_GetItemCount(IntPtr header)
{
return SendMessage(header, HDM_GETITEMCOUNT, 0, 0);
}

/// <summary>
/// 获取 ListView 的列数
/// </summary>
/// <param name="listViewHandle"></param>
/// <returns></returns>
int ListViewColumnCount(IntPtr listViewHandle)
{
return Header_GetItemCount(ListView_GetHeader(listViewHandle));
}

完整代码下载（解压密码为本站网址）www.zu14.cn

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