窗口边框的宽度和高度在Win32 - 我该如何得到它？ [英] window border width and height in Win32 - how do I get it?

问题描述

      ::GetSystemMetrics (SM_CYBORDER)

...回到1，我知道标题bar高于ONE像素：/

...comes back with 1 and I know the title bar is taller than ONE pixel :/

我也尝试过：

     RECT r;
      r.left = r.top = 0;   r.right = r.bottom = 400;
      ::AdjustWindowRect (& r, WS_OVERLAPPED, FALSE);
      _bdW = (uword)(r.right - r.left - 400);
      _bdH = (uword)(r.bottom - r.top - 400);

但是边框w，h返回为0.

But border w,h came back as 0.

在我的WM_SIZE处理程序，我需要确保窗口的高度在
steps中改变，因此，例如一个整行的文本可以适合窗口
，在底部没有垃圾部分行间距。

In my WM_SIZE handler, I need to make sure the window's height changes in "steps" so, for example a whole new line of text could fit in the window with no "junky partial line space" at the bottom.

但是:: MoveWindow需要添加边框空间的尺寸。

But ::MoveWindow needs the dimensions WITH the border space added in.

...
感谢任何帮助：）

SOMEbody must have done this before... Thanks for any help :)

推荐答案

GetWindowRect 和 GetClientRect 函数可以计算所有窗口边框的大小。

The GetWindowRect and GetClientRect functions can be used calculate the size of all the window borders.

Suite101有一篇关于调整窗口大小和保持客户区域已知大小的文章。

Suite101 has a article on resizing a window and the keeping client area at a know size.

这是他们的示例代码：

void ClientResize(HWND hWnd, int nWidth, int nHeight)
{
  RECT rcClient, rcWind;
  POINT ptDiff;
  GetClientRect(hWnd, &rcClient);
  GetWindowRect(hWnd, &rcWind);
  ptDiff.x = (rcWind.right - rcWind.left) - rcClient.right;
  ptDiff.y = (rcWind.bottom - rcWind.top) - rcClient.bottom;
  MoveWindow(hWnd,rcWind.left, rcWind.top, nWidth + ptDiff.x, nHeight + ptDiff.y, TRUE);
}

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