What is the best way to display IBitmapImage on a device context. I am using Windows CE 6.0. void CImaginingTestView::OnDraw(CDC* pDC) { CImaginingTestDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); IBitmapImage* pBitmapImage = pDoc->GetBitmapImage(); if (pBitmapImage) { // how to draw my bitmap on a pDC ?? ...
I'm calling the Win32 DrawText function to output some text into a device context. The text is long and wraps nicely onto a second line. The problem is I need to decrease the space between lines a bit (I guess decrease the line height?). Any ideas on how to do this? I would just call DrawText twice (one for each line) but then I ha...
Hi. I have a Process Control system. It has a huge 2D workspace where all the logic is laid out. The 2D workspace is a coordinate system. You usually do not see the whole workspace at once, but rather some in-zoomed part of it focusing on some part of the controlled process. Such subsystem views are bookmarked into predefined named ima...
hello what is the easiest way to drag an image ( or text) in a wx window ? i need steps or a small example on how to do that. thanx in advance ...
Am i allowed to use a DC outside of a paint cycle? Is my window's DC guaranteed to be valid forever? i'm trying to figure out how long my control's Device Context (DC) is valid. i know that i can call: GetDC(hWnd); to get the device context of my control's window, but is that allowed? When Windows sends me a WM_PAINT message, i am ...
hello I'm trying to make a paint tool in wxpython. and i couldn't find a way to make an ( Eraser ) . how can i make an eraser tool - just like the one in windows paint - in wxpython ? please help . the idea or small code sample would be very helpful thanks in advance ...
I'm trying to create a widget which paints directly to the windows Device Context by calling getDC() and painting an HBITMAP to it. The widget I'm painting resides inside a scroll widget. I've implemented the paintEvent() and it does seem to paint but immediatly after painting the widget gets painted over again with a blank gray color. ...
As a relative newcomer to MFC, I see Device Contexts (DCs) a lot. I vaguely understand that it's something to do with drawing, but the specifics are not very well explained anywhere that I can find. What does creating a "compatible Device Context" mean, and why is it important? What does SelectObject do, and how must I make a DC compatib...
I would like to trick Chrome in to rendering its tabs in some memory device context of mine. Is this possible at all ? Thank you ! ...
Maybe this is a foolish question, I can't see why I can not get a DC created in the following code : HBITMAP COcrDlg::LoadClippedBitmap(LPCTSTR pathName,UINT maxWidth,UINT maxHeight) { HBITMAP hBmp = (HBITMAP)::LoadImage(NULL, pathName, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE | LR_CREATEDIBSECTION); ...
Hi, I have a pointer to a COLORREF buffer, something like: COLORREF* buf = new COLORREF[x*y]; A subroutine fills this buffer with color-information. Each COLORREF represents one pixel. Now I want to draw this buffer to a device context. My current approach works, but is pretty slow (== ~200ms per drawing, depending on the size of th...