Add non-updating mode for Crop-And-Lock (#40720)

<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
-->
## Summary of the Pull Request

Adds a "screenshot" mode to Crop And Lock, which allows creating a
window showing a freezed snapshot of the original window.


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## PR Checklist

- [x] **Closes:** #31799, #33071 (also requested in the already closed
duplicate issues #28633, #33812, #37337, )
- [ ] **Communication:** I've discussed this with core contributors
already. If the work hasn't been agreed, this work might be rejected
- [x] **Tests:** Added/updated and all pass (crop-and-lock utility
doesn't have any tests)
- [x] **Localization:** All end-user-facing strings can be localized
- [x] **Dev docs:** Added/updated
- [x] **New binaries:** Added on the required places
- [ ] [JSON for
signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json)
for new binaries
- [ ] [WXS for
installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs)
for new binaries and localization folder
- [ ] [YML for CI
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml)
for new test projects
- [ ] [YML for signed
pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml)
- [x] **Documentation updated:**
https://github.com/MicrosoftDocs/windows-dev-docs/pull/5528

<!-- Provide a more detailed description of the PR, other things fixed,
or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments
It was asked why this feature is needed at all, because it could be done
with snipping tool and just AoT that window as well. While this is true,
PowerToys goal always was to improve and speed up workflows. Instead of
capturing the screenshot, opening it, and then apply "Crop and Lock" or
"Always on Top" on the screenshots window, this PR aims to provide this
functionality in a single step.

Example use cases:
- _when I want to compare between two situations like previous output
result and current output result._ (#31799)
- _Allow cropping a section of a large code file (say top while working
at the bottom) as reference while working elsewhere in the file._
(#33071)
- _Can be useful for the work in the same document, like excel or word
where you are actively checking the data from the same document._
(#28633)
- _In lot's of older applications, if you need to get some information
or data from one dialog do another, but because of dialog modality it's
not possible to have both windows open at the same time._ (#33812)
- _nowadays quite a lot is happening inside the browser. Quite often, I
want to keep a small portion of the current website visible and switch
to e.g. the writing tool also running in a different tab in the same
browser window._ (#31799)


I've used win+ctrl+shift+s as the default activation shortcut, as it's
not yet used by other powertoys utilities, has similarity with the
normal win+shift+s shortcut hotkey and is consistent with the other Crop
and Lock shortcuts win+ctrl+shift+r (Reparent Mode) and win+ctrl+shift+t
(Thumbnail Mode).

<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed

Compatibility tested manually with a large set of applications I have
installed on my computer. However, automated tests don't really make
sense as there is not much business logic which could be tested.

---------

Co-authored-by: Niels Laute <niels.laute@live.nl>
Co-authored-by: vanzue <vanzue@outlook.com>

src/modules/CropAndLock/CropAndLockModuleInterface/dllmain.cpp

@@ -29,6 +29,7 @@ namespace
     const wchar_t JSON_KEY_CODE[] = L"code";
     const wchar_t JSON_KEY_REPARENT_HOTKEY[] = L"reparent-hotkey";
     const wchar_t JSON_KEY_THUMBNAIL_HOTKEY[] = L"thumbnail-hotkey";
+    const wchar_t JSON_KEY_SCREENSHOT_HOTKEY[] = L"screenshot-hotkey";
     const wchar_t JSON_KEY_VALUE[] = L"value";
 }
 
@@ -124,6 +125,10 @@ public:
                 SetEvent(m_thumbnail_event_handle);
                 Trace::CropAndLock::ActivateThumbnail();
             }
+            if (hotkeyId == 2) { // Same order as set by get_hotkeys
+                SetEvent(m_screenshot_event_handle);
+                Trace::CropAndLock::ActivateScreenshot();
+            }
 
             return true;
         }
@@ -133,12 +138,13 @@ public:
 
     virtual size_t get_hotkeys(Hotkey* hotkeys, size_t buffer_size) override
     {
-        if (hotkeys && buffer_size >= 2)
+        if (hotkeys && buffer_size >= 3)
         {
             hotkeys[0] = m_reparent_hotkey;
             hotkeys[1] = m_thumbnail_hotkey;
+            hotkeys[2] = m_screenshot_hotkey;
         }
-        return 2;
+        return 3;
     }
 
     // Enable the powertoy
@@ -171,7 +177,7 @@ public:
     virtual void send_settings_telemetry() override
     {
         Logger::info("Send settings telemetry");
-        Trace::CropAndLock::SettingsTelemetry(m_reparent_hotkey, m_thumbnail_hotkey);
+        Trace::CropAndLock::SettingsTelemetry(m_reparent_hotkey, m_thumbnail_hotkey, m_screenshot_hotkey);
     }
 
     CropAndLockModuleInterface()
@@ -182,6 +188,7 @@ public:
 
         m_reparent_event_handle = CreateDefaultEvent(CommonSharedConstants::CROP_AND_LOCK_REPARENT_EVENT);
         m_thumbnail_event_handle = CreateDefaultEvent(CommonSharedConstants::CROP_AND_LOCK_THUMBNAIL_EVENT);
+        m_screenshot_event_handle = CreateDefaultEvent(CommonSharedConstants::CROP_AND_LOCK_SCREENSHOT_EVENT);
         m_exit_event_handle = CreateDefaultEvent(CommonSharedConstants::CROP_AND_LOCK_EXIT_EVENT);
 
         init_settings();
@@ -202,6 +209,7 @@ private:
         
         ResetEvent(m_reparent_event_handle);
         ResetEvent(m_thumbnail_event_handle);
+        ResetEvent(m_screenshot_event_handle);
         ResetEvent(m_exit_event_handle);
 
         SHELLEXECUTEINFOW sei{ sizeof(sei) };
@@ -234,6 +242,7 @@ private:
 
         ResetEvent(m_reparent_event_handle);
         ResetEvent(m_thumbnail_event_handle);
+        ResetEvent(m_screenshot_event_handle);
 
         // Log telemetry
         if (traceEvent)
@@ -283,6 +292,21 @@ private:
             {
                 Logger::error("Failed to initialize CropAndLock thumbnail shortcut from settings. Value will keep unchanged.");
             }
+            try
+            {
+                Hotkey _temp_screenshot;
+                auto jsonHotkeyObject = settingsObject.GetNamedObject(JSON_KEY_PROPERTIES).GetNamedObject(JSON_KEY_SCREENSHOT_HOTKEY).GetNamedObject(JSON_KEY_VALUE);
+                _temp_screenshot.win = jsonHotkeyObject.GetNamedBoolean(JSON_KEY_WIN);
+                _temp_screenshot.alt = jsonHotkeyObject.GetNamedBoolean(JSON_KEY_ALT);
+                _temp_screenshot.shift = jsonHotkeyObject.GetNamedBoolean(JSON_KEY_SHIFT);
+                _temp_screenshot.ctrl = jsonHotkeyObject.GetNamedBoolean(JSON_KEY_CTRL);
+                _temp_screenshot.key = static_cast<unsigned char>(jsonHotkeyObject.GetNamedNumber(JSON_KEY_CODE));
+                m_screenshot_hotkey = _temp_screenshot;
+            }
+            catch (...)
+            {
+                Logger::error("Failed to initialize CropAndLock screenshot shortcut from settings. Value will keep unchanged.");
+            }
         }
         else
         {
@@ -321,9 +345,11 @@ private:
     // TODO: actual default hotkey setting in line with other PowerToys.
     Hotkey m_reparent_hotkey = { .win = true, .ctrl = true, .shift = true, .alt = false, .key = 'R' };
     Hotkey m_thumbnail_hotkey = { .win = true, .ctrl = true, .shift = true, .alt = false, .key = 'T' };
+    Hotkey m_screenshot_hotkey = { .win = true, .ctrl = true, .shift = true, .alt = false, .key = 'S' };
 
     HANDLE m_reparent_event_handle;
     HANDLE m_thumbnail_event_handle;
+    HANDLE m_screenshot_event_handle;
     HANDLE m_exit_event_handle;
 
 };