Colorz - The RGB Assistant

#include "WinMain.h"		/*/ Standard application includes /*/

/*/
/ / BOOL
/ /		CenterWnd (HWND hwnd, HWND hwndPreferred)
/ /
/ / PURPOSE:
/ /		Function to center a window, either in correspondence
/ /		with a preferred window, a parent window, or the work area.
/ /
/ /	CREDITS:
/ /		This function originated as the CenterWindow function found in the
/ /		book "Win32 Programming" by Brent E. Rector and Joseph M. Newcomer.
/ /		I, Jeremy Falcon, modified it to compile cleanly under warning level
/ /		4 and to gain a slight performance increase under certain conditions.
/*/

BOOL
CenterWnd (HWND hwnd, HWND hwndPreferred)
{
	BOOL	result;
	POINT	PreferredPoint, CenteredPoint;
	RECT	WndRect, PreferredRect, WorkArea = {0,0,0,0};
	SIZE	CenteredWnd;

	/*/ The macros used here are defined in windowx.h /*/

	if(NULL == hwnd)	return FALSE;
	if(!IsWindow(hwnd))	return FALSE;

	/*/ See if a preferred window is specified /*/
	if(NULL == hwndPreferred)
		/*/ See if window to be centered is a child /*/
		hwndPreferred = GetWindowOwner(hwnd);

	/*/ Center around the preferred window if exists; otherwise, center in the work area /*/
    if(NULL != hwndPreferred)
	{
        if(!IsWindow(hwndPreferred)) return FALSE;
        GetWindowRect(hwndPreferred, &PreferredRect);
    }
    else
	{
		/*/ Get the rectangle for the work area /*/
		result = SystemParametersInfo(SPI_GETWORKAREA, sizeof(RECT), &WorkArea, 0);

		/*/
		/ / If the above call failed Explorer is not running correctly;
		/ / therefore, there is no work area (and taskbar). So, we'll
		/ / use the screen size instead for our coordinates.
		/*/

		if(!result)
		{
			SetRect(&WorkArea, 0, 0, 
					GetSystemMetrics (SM_CXSCREEN),
					GetSystemMetrics (SM_CYSCREEN));
		}

        PreferredRect = WorkArea;
	}

    /*/ Preferred center point /*/
    PreferredPoint.x = (PreferredRect.left + PreferredRect.right)  / 2;
    PreferredPoint.y = (PreferredRect.top  + PreferredRect.bottom) / 2;

    /*/ Get the window's (to be centered) rectangle and compute the width/height /*/
    GetWindowRect(hwnd, &WndRect);
    CenteredWnd.cx = (WndRect.right  - WndRect.left);
    CenteredWnd.cy = (WndRect.bottom - WndRect.top);

	/*/ Center window in preferred horizontally (left side) /*/
    CenteredPoint.x = PreferredPoint.x - (CenteredWnd.cx / 2);

	/*/ Center window in owner vertically (top side) /*/
    CenteredPoint.y = PreferredPoint.y - (CenteredWnd.cy / 2);

    /*/
	/ / If the left edge of the centered window is clipped by the work area
	/ / move the window to the right until the edge is exposed.
	/*/
	if(CenteredPoint.x < WorkArea.left) CenteredPoint.x = WorkArea.left;

	/*/
	/ / If the right edge of the centered window is clipped by the work area
	/ / move the window to the left until the edge is exposed.
	/*/
	else if(CenteredPoint.x + CenteredWnd.cx > WorkArea.right)
		CenteredPoint.x = (WorkArea.right - CenteredWnd.cx);

	/*/
	/ / If the top edge of the centered window is clipped by the work area
	/ / move the window down until the edge is exposed.
	/*/
	if (CenteredPoint.y < WorkArea.top) CenteredPoint.y = WorkArea.top;

	/*/
	/ / If the bottom edge of the centered window is clipped by the work area
	/ / move the window up until the edge is exposed.
	/*/
	else if (CenteredPoint.y + CenteredWnd.cy > WorkArea.bottom)
		CenteredPoint.y = (WorkArea.bottom - CenteredWnd.cy);

    /*/ Reposition the centered window /*/
	return SetWindowPos (hwnd, NULL, CenteredPoint.x, CenteredPoint.y,
						 0, 0, SWP_NOACTIVATE|SWP_NOSIZE|SWP_NOZORDER);
}

/*/
/ / BOOL
/ /		AddClipboardText (HWND hwnd, char * szText)
/ /
/ /			hwnd		Window handle for calling window
/ /			szText		Pointer to a null-terminated string
/ /						containing the text to add to the clipboard
/ /
/ / PURPOSE:
/ /		Adds the contents pointed to by szText to the
/ /		Windows clipboard. Returns FALSE if unsuccessful.
/*/

BOOL AddClipboardText(HWND hwnd, char * szText)
{
	/*/ post data to clipboard /*/
	if( OpenClipboard(hwnd) )
	{
		HGLOBAL GlobalBuff;
		char * buffer;

		//szText += '\0';
		EmptyClipboard();

		/*/ use GMEM_DDESHARE if you want Win32s compatiblity /*/
		GlobalBuff = GlobalAlloc(GMEM_MOVEABLE,strlen(szText)+1);

		buffer = (char*)GlobalLock(GlobalBuff);
		/*/ ensure we are working with a null-terminated string /*/
		szText[strlen(szText)+1] = '\0';
		strcpy(buffer, szText);
		GlobalUnlock(GlobalBuff);

		if(SetClipboardData(CF_TEXT,GlobalBuff) == NULL) return FALSE;
		CloseClipboard();
	}
	else
		return FALSE;

	return TRUE;
}