c++ - FillRect 在某些情况下不起作用

Question

在我的代码中:

void Surface::paintBorders(const Color& color, int borderWidth){
HBRUSH colorBrush = CreateSolidBrush(color.getRGB());
RECT border;

//Top Border:
border.top = 0;
border.bottom = borderWidth;
border.left = 0;
border.right = mRect.right - mRect.left;
FillRect(mHDC, &border, colorBrush);

//Bottom border
border.top = mRect.bottom - mRect.top - borderWidth;
border.bottom = mRect.bottom - mRect.top;
border.left = 0;
border.right = mRect.right - mRect.left;
FillRect(mHDC, &border, colorBrush);

//Right border
border.top = 0;
border.bottom = mRect.bottom - mRect.top;
border.left = mRect.right - mRect.left - borderWidth;
border.right = mRect.right - mRect.left;
FillRect(mHDC, &border, colorBrush);

//Left border
border.top = 0;
border.bottom = mRect.bottom - mRect.top;
border.left = 0;
border.right = borderWidth;
FillRect(mHDC, &border, colorBrush);

DeleteObject(colorBrush);

只有顶部和左侧边框被绘制，底部和右侧没有。我引用自 MSDN:

This function includes the left and top borders, but excludes the right and bottom borders of the rectangle.

不知道有没有关系。我确信所有协调都正常，HDC 和 HBRUSH 参数也是如此。有什么想法吗？

Answer 1

好的伙计们，我得到了答案，显然 rect 是由 GetWindowRect 而不是 GetClientRect 检索的，这搞砸了所有的协调