昨天寫了MoveWindow函數(shù)，今天又要寫SetWindowPos函數(shù)，因?yàn)镸oveWindow確實(shí)不好，浪費(fèi)了差不多一天時(shí)間。。。對(duì)于主窗口，選擇了Center屬性就可以移動(dòng)位置，不選就不行；窗口資源過(guò)大也不能移動(dòng)；改變后窗口的尺寸大于等于屏幕尺寸的話，在它上面DoModal出來(lái)的新窗口不能移動(dòng)。。原來(lái)，使用MoveWindow移動(dòng)對(duì)話框位置似乎有很苛刻的條件，一不小心就原地不動(dòng)了，而且我也實(shí)在琢磨不透這樣的條件，網(wǎng)上也沒(méi)有查處來(lái)。今天用了SetWindowPos后，才發(fā)現(xiàn)，果然好用！

Parameters

pWndInsertAfter

Identifies the CWnd object that will precede this CWnd object in the Z-order. This parameter can be a pointer to a CWnd or a Pointer to one of the following values:

• wndBottom   Places the window at the bottom of the Z-order. If this CWnd is a topmost window, the window loses its topmost status; the system places the window at the bottom of all other windows.
• wndTop   Places the window at the top of the Z-order.
• wndTopMost   Places the window above all nontopmost windows. The window maintains its topmost position even when it is deactivated.
• wndNoTopMost   Repositions the window to the top of all nontopmost windows (that is, behind all topmost windows). This flag has no effect if the window is already a nontopmost window.

nFlags

Specifies sizing and positioning options. This parameter can be a combination of the following: 常用的是SWP_SHOWWINDOW

注意：
    這里的坐標(biāo)參數(shù)用的是Client坐標(biāo)，對(duì)于子窗口用的是其父窗口的坐標(biāo)系。然而對(duì)于用DoModal()彈出的窗口，如果在資源屬性里沒(méi)有選擇Child屬性的話，它的父窗口是DeskTop，而不是調(diào)用DoModal()的窗口。