I know about Drag/Drop to use for contents of a control (maybe a certain line in a listbox)to Drag to another control, or Drag the total control to a different location.
If you drawn a rectangle on a form, and want it to be somewhere else it is easiest to erase the first one, then draw it on the new position again.
You could try "Canvas->Pen->Mode = pmXor;" while drawing your rectangle. This is special, because...
WRoos
Last Activity: Oct 12 '12, 02:05 PM
Joined: Oct 10 '12
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I made a compleet program with my problem.
If someone is willing to help, he/she can take this code in a new project,
1)define the RMinR function in the .h file
2)define the FormPaint-event in the Form
3)run.
It paints a bitmap in 5 parts. If you look closely you can see the center and the part right to the center are shifted 1 pixel.
For some bitmaps this is more disturbing then for others.
if you...Last edited by Niheel; Oct 11 '12, 07:35 PM.Leave a comment:
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JulDate=[1461* (year+4716)/4] + [153* (month+1)/5]+Day+2-[year/100]+[year/400]-1524,5
use for january 13, for february 14 and subtract 1 from year
[...] means must be truncated in an integer.
Your right year 0 does not exist, but every year not using the Greorian calander (leapyears) are hypotatical. I've read ones the last european country to use the Grogorian calander is Turkey in 1927.Leave a comment:
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I have no experience with programs without forms, but I see 2 problems:
int sumsTemp[argc];
1) You can't declare tables in this way. the computer needs to know at compile-time how many memory will be used. You can solve this by defining tables for 100 int's. Always enough...
or you can use
...Code:int* sumsTemp = malloc(argc*sizeof(int)); int count = sumsTemp[index]; // use as usual free(sumsTemp)
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...Code://I'm using struct: FObject containing: // bitmap // srect: position on screen // brect: position in bitmap (bitmap's in bitmap's) // // mylist start with the ClipRect (the invalidated rect for my control) OnPaint() { TRect rmr[5], *todo; Canvas->CopyMode = cmSrcCopy; for (int n=FObjects->Count-1; n>=0; n--) { // last bitmap first have = (TBBObject*)Leave a comment:
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If your developping under Windows, there's a global variable something like "longdateformat " if it has a value with 1d it showns the day without leading zero, 2d's with leading zero and 3d's as a full name. (I'm doing this by memory so it might not be completely right, but close enough)
If your OS can not do this, you best calculate a juliandatenumbe r. This can give the number of days past since year 0.Leave a comment:
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Canvas->CopyRect shifts 1 pixel by zoomed image
I'm building a bitmapmanipulat ion-component in C++Builder6
After loading a bitmap in my component, I then can make a selection, which can be moved around.
The problem I have is in my OnPaint-event. I paint the topmost bitmap first(the selection), then find the parts that not have been painted, and paint those parts from the original bitmap.
If the bitmaps are zoomed-out (smaller on the screen) the original bitmap...
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