C# Signature:

[DllImport("user32.dll")]
  public static extern int SendMessage(int hWnd, uint Msg, int wParam, int lParam);

User-Defined Types:

None.

Alternative Managed API:

Do you know one? Please contribute it!

Notes:

I did try in vs2017.

비주얼 스튜디오 2017 버전에서 테스트 했습니다.

Mouse Position is must from selected in windows form.

마우스 좌표는 선택된 창의 내부 좌표를 넣어야 합니다.

Get Window position function is...

윈도우 포지션 가져오기 참고...

GetWindowRect

Tips & Tricks:

Please add some!

Sample Code:

for C#

  [DllImport("user32.dll")]
  public static extern int SendMessage(int hWnd, uint Msg, int wParam, int lParam);

  public const uint WM_LBUTTONDOWN = 0x0201;
  public const uint WM_LBUTTONUP = 0x0202;
  public static void SendMouseClick(int iHandle, int X, int Y)
  {
      int X = X - WindowRect.left;
      int Y = Y - winsowRect.top;
      int lparm = (Y << 16) + X;
      int lngResult = SendMessage(iHandle, WM_LBUTTONDOWN, 0, lparm);
      int lngResult2 = SendMessage(iHandle, WM_LBUTTONUP, 0, lparm);
  }

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