commit f5f90432084cd7386764ef40b5d9d98a026c0665
Author:     ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
AuthorDate: Sun Nov 29 09:14:54 2020 +0100
Commit:     ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
CommitDate: Sun Nov 29 09:15:04 2020 +0100

    Windows: fix undrawn pixels at right and bottom of scaled windows.

 src/Fl_win32.cxx                           | 3 +--
 src/drivers/GDI/Fl_GDI_Graphics_Driver.cxx | 2 --
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git src/Fl_win32.cxx src/Fl_win32.cxx
index e0d5c9f..fd846d9 100644
--- src/Fl_win32.cxx
+++ src/Fl_win32.cxx
@@ -1265,8 +1265,7 @@ static LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPar
           ValidateRgn(hWnd, R2);
         }
 
-        // convert R2 in drawing units to i->region in FLTK units
-        i->region = Fl_GDI_Graphics_Driver::scale_region(R2, 1 / scale, NULL);
+        if (scale != 1) DeleteObject(R2);
 
         window->clear_damage((uchar)(window->damage() | FL_DAMAGE_EXPOSE));
         // These next two statements should not be here, so that all update
diff --git src/drivers/GDI/Fl_GDI_Graphics_Driver.cxx src/drivers/GDI/Fl_GDI_Graphics_Driver.cxx
index 1938fc5..31e54c3 100644
--- src/drivers/GDI/Fl_GDI_Graphics_Driver.cxx
+++ src/drivers/GDI/Fl_GDI_Graphics_Driver.cxx
@@ -246,14 +246,12 @@ void Fl_GDI_Graphics_Driver::scale(float f) {
 
 /* Rescale region r with factor f and returns the scaled region.
  Region r is returned unchanged if r is null or f is 1.
- The input region is deleted if dr is null.
  */
 HRGN Fl_GDI_Graphics_Driver::scale_region(HRGN r, float f, Fl_GDI_Graphics_Driver *dr) {
   if (r && f != 1) {
     DWORD size = GetRegionData(r, 0, NULL);
     RGNDATA *pdata = (RGNDATA*)malloc(size);
     GetRegionData(r, size, pdata);
-    if (!dr) DeleteObject(r);
     POINT pt = {0, 0};
     if (dr && dr->depth >= 1) { // account for translation
       GetWindowOrgEx((HDC)dr->gc(), &pt);