GetWindowRect(),GetClientRect() question

[econy]

Hi, I am confused with screen/window/client coordinate in windows programming. As I understand, 3 coordinates are like the following: screen top left point: spoint(Xs,Ys); window top left point: wpoint(Xw,Yw); client top left point: cpoint(Xc,Yc); so the related position for 3 points are:

spoint -----------
| wpoint----------
| |
| cpoint ----------
|
|

GetWindowRect(&rect) gets wpoint; ScreenToClient(&rect) gets which point? if it gets cpoint,then cpoint (x,y) based on wpoint, or spoint? And in a dialog template:

CONTROL "",IDC_STATIC_TST,"Static",SS_BLACKFRAME,80,83,118,35
80,83,118,35 based on client top left point?

[Lost User]

Hi, It's all relative, my dear Watson.

econy wrote:

ScreenToClient(&rect) gets which point?

ScreenToClient will convert a screet RECT (your 'spoint') coordinates to be relative to client RECT (your 'cpoint'). In your example the top and left will be negative coordinates relative to the client top/left. Window Coordinate System[^] Best Wishes, -David Delaune