Screenzap is a screenshot tool for Windows with similar behavior to the MacOS screenshot feature. It has configurable keyboard shortcuts, and an option to start when logged in.
Extract the complete release folder and run Screenzap.exe. Keep its runtime libraries, resource files and Models folder beside the executable.
For a stable per-user install path on Windows, prefer publishing to %LOCALAPPDATA%\Programs\Screenzap and pointing shortcuts there. Build outputs under bin\Debug and bin\Release are for development and should not be used as long-lived shortcut targets.
Press the configured shortcut (default is ctrl-alt-shift-4), drag to select a screen region, and take your screenshot. It will go on the clipboard.
Double-click the tray icon (or choose Edit Clipboard Image) to open the WinUI image editor. Draw and select with the left tool rail, adjust the current tool or selection in the right inspector, and revisit clipboard images in the bottom history strip. Image operations are available directly above the canvas; document actions include Save, Copy, Undo, Redo and Commit (Ctrl+Enter). Commit accepts edits into the clipboard while retaining zoom, pan and undo.
Drag the divider above History to resize the drawer. Use as clipboard copies the selected image and moves it to the front; the same action is available by right-clicking a thumbnail. The document stays editable. History images and emoji can be dragged onto the canvas. Resize, perspective correction, free rotation, OCR censoring, background replacement, color correction, text optimization and De-JPEG use the existing editing algorithms. The View controls below the history provide zoom, Fit, 100% and transparency.
- Shift -- make selection square
- Space -- move selection rectangle
- Alt -- draw from center of selection (bit wonky)
- Holding Shift and Alt simultaneously doesn't work
- Not all surfaces will get captured
- What You See Isn't Quite What You'll Get -- some visual elements, like context menus, will not always get captured
- DPI awareness is experimental and only Works On My Machine. Bug reports and PR:s welcome!
Screenzap is built as a 64-bit (x64) Windows application. Before rebuilding, make sure any running Screenzap.exe process is closed so the linker can overwrite the executable. Use the .NET CLI directly (for example dotnet build screenzap/Screenzap.csproj -nr:false -m:1 -p:UseSharedCompilation=false) rather than VS Code tasks so you see any build warnings or errors in real time and so the debugger can attach to the x64 process successfully.
For a stable local install while developing, use dotnet publish screenzap/Screenzap.csproj -c Release -nr:false -m:1 -p:UseSharedCompilation=false -o %LOCALAPPDATA%\Programs\Screenzap and launch that published copy. This keeps shortcuts and autorun targets stable even when the framework moniker or build layout changes.
See the WinUI editor architecture and verification guide for the native UI, retained document backend, publishing requirements and isolated UI smoke mode. Approved design mockups are kept locally in gitignored local/mockups/.
The text-region detector now prefers Tesseract OCR. Copy the appropriate tessdata directory next to the executable (for example screenzap\tessdata) or point the environment variable SCREENZAP_TESSDATA_PATH to a folder containing eng.traineddata (or your chosen language). If no trained data is found the legacy heuristic detector is used instead.