How to realize hiding my app while sharing screen

Wenchi

Hello everyone！

Is there any way to hide my app windows while shareing screen？
eg：
view of who is sharing screen：
企业微信截图_16570091027294.png

view of who is watching：

Wenchi

Finally I find a way to do that in Windows.

#pragma once

#include <windows.h>

#include "frameless_dialog.h"

/**
 * @brief 防止被截图的无边框对话框
 *        setResizeable(true)启用手动调整大小，setContentRemovable(true)启用内容区域可拖动
 */
class FramelessQDialogAntiCapture : public FramelessQDialog {
 public:
  FramelessQDialogAntiCapture(QWidget* parent = nullptr)
      : FramelessQDialog(parent) {
      SetWindowDisplayAffinity((HWND)(this->winId()), WDA_EXCLUDEFROMCAPTURE);
  }

 protected:
  virtual void showEvent(QShowEvent *e) override{
      SetWindowDisplayAffinity((HWND)(this->winId()), WDA_EXCLUDEFROMCAPTURE);
      FramelessQDialog::showEvent(e);
  }

  virtual void hideEvent(QHideEvent *e) override{
      SetWindowDisplayAffinity((HWND)(this->winId()), WDA_NONE);
      FramelessQDialog::hideEvent(e);
  }
};

jsulm

@Wenchi https://doc.qt.io/qt-6/qwidget.html#hide

Kent-Dorfman

no. RFB protocol simply copies the screen image memory to the other end as-is. RDP may have some facility to restrict what gets copied but that is well beyond the scope of this forum to discuss.

Wenchi

Finally I find a way to do that in Windows.

#pragma once

#include <windows.h>

#include "frameless_dialog.h"

/**
 * @brief 防止被截图的无边框对话框
 *        setResizeable(true)启用手动调整大小，setContentRemovable(true)启用内容区域可拖动
 */
class FramelessQDialogAntiCapture : public FramelessQDialog {
 public:
  FramelessQDialogAntiCapture(QWidget* parent = nullptr)
      : FramelessQDialog(parent) {
      SetWindowDisplayAffinity((HWND)(this->winId()), WDA_EXCLUDEFROMCAPTURE);
  }

 protected:
  virtual void showEvent(QShowEvent *e) override{
      SetWindowDisplayAffinity((HWND)(this->winId()), WDA_EXCLUDEFROMCAPTURE);
      FramelessQDialog::showEvent(e);
  }

  virtual void hideEvent(QHideEvent *e) override{
      SetWindowDisplayAffinity((HWND)(this->winId()), WDA_NONE);
      FramelessQDialog::hideEvent(e);
  }
};