Support Board
Date/Time: Fri, 22 Nov 2024 09:26:47 +0000
Post From: SC Structure Support for p_GDIFunction
| [2013-04-28 16:45:07] |
| ejtrader - Posts: 688 |
|
SC Team - Don't know if you are following thread or not - now that you have marked this thread as User Discussion. In case if you do - Just wanted to update you that even GDI+ works as well with this structure. One interesting observation is - When a line is drawn from point 1 to poin 2 - If they are painted through p_GDIFunction - Everything works fine. When the same points are used through own WindowDC - they are off by some means. Wondering if you do any co-ordinate transformation within the function - p_GDIFunction? Basically if these co-ordinates can be aligned with own WindowDC function - Technically "SC" structure can be exposed as well with custom function - with the call - DrawPaint(sc,hwnd); - hwnd is just the window handle and within the function - HDC can be declared directly if you can shed some light on this it would be much appreciated. Not expecting you would answer this - but "hoping" you would answer as exposing SC structure would be a "complete" solution to support this GDI :) Thanks http://www.sierrachart.com/image.php?l=1367176716538.png main() { sc.p_GDIFunction = DrawGraph; //Co-ordinates are fine but SC structure is not available to the function HWND hwnd = sc.ChartWindowHandle; DrawGraphOwnDC(sc, hwnd); // If the same co-ordinates are used with this method - they are off on screen but advantage is 'SC' structure is available } void DrawGraph(HWND hwnd, HDC hdc) { // draw commands -- These graphs align well } void DrawGraphOwnDC(SCStudyInterfaceRef sc, HWND hwnd) { HDC hdc = GetWindowDC(hwnd); // draw commands -- These graphs are off by few pixels } Date Time Of Last Edit: 2013-04-28 19:18:59
|