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Paint the cockpit panes immediately - queued WM_PAINTs starve

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The game loop pumps ONE message per frame (APPMGR.cpp PeekMessage), and
WM_PAINT is synthesized only when the queue is otherwise empty - so the
child panes queued invalidations that never delivered: the map stayed
black and button lamps froze at their first-paint state on the live
screen. (PrintWindow-based captures forced paints and the synthetic
SendMessage click bypassed the queue, which is why every automated
verification looked fine while the live window was frozen.)

MFDSplitView::Repaint and PlasmaScreen::Update now paint synchronously
via RedrawWindow(RDW_INVALIDATE|RDW_UPDATENOW) at fill time, and the
button press/release feedback goes through the same path. Verified with
a true screen capture (CopyFromScreen): map drawing live, timer
counting, the active preset lamp bright on the map right column.

Lamp anchor sanity-check against the game code: mode switch NOV/STD/
VET/EXP = ButtonAuxUpperRight5-8 = 0x33..0x30 = the upper-right MFD
bottom strip left-to-right; presets = Secondary7-12 = 0x18-0x1D = the
map right column - both match the placed buttons.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Cyd
2026-07-12 15:12:17 -05:00
co-authored by Claude Fable 5
parent 3b775e19d9
commit 4037e39810
2 changed files with 13 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
MUNGA_L4/L4MFDVIEW.cpp
+9 -3
View File
@@ -371,7 +371,7 @@ void
pressedIndex = i;
SetCapture((HWND) window);
PadRIO::SetScreenButton(button->unit, True);
InvalidateRect((HWND) window, NULL, FALSE);
Repaint();
return;
}
}
@@ -388,16 +388,22 @@ void
{
ReleaseCapture();
}
InvalidateRect((HWND) window, NULL, FALSE);
Repaint();
}
}
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Paint NOW rather than queueing an invalidation: the game loop pumps
// one message per frame, and queued WM_PAINTs (lowest priority) starve
// behind it - panes would freeze on their first frame.
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
void
MFDSplitView::Repaint()
{
Check_Pointer(this);
if (window != NULL)
{
InvalidateRect((HWND) window, NULL, FALSE);
RedrawWindow((HWND) window, NULL, NULL,
RDW_INVALIDATE | RDW_UPDATENOW);
}
}
MUNGA_L4/L4PLASMASCREEN.cpp
+4 -1
View File
@@ -304,7 +304,10 @@ Logical
if (dirty && window != NULL)
{
InvalidateRect((HWND) window, NULL, FALSE);
// paint now - queued WM_PAINTs starve behind the game loop's
// one-message-per-frame pump
RedrawWindow((HWND) window, NULL, NULL,
RDW_INVALIDATE | RDW_UPDATENOW);
}
return False; // 'done' - nothing left to stream