diff --git a/sources/diagramprintdialog.cpp b/sources/diagramprintdialog.cpp
index bd37d6c49..0c535c7dc 100644
--- a/sources/diagramprintdialog.cpp
+++ b/sources/diagramprintdialog.cpp
@@ -78,7 +78,7 @@ QString DiagramPrintDialog::docName() const {
 void DiagramPrintDialog::exec() {
 	
 	// affichage du dialogue d'impression standard
-	QPrintDialog print_dialog(printer);
+	QPrintDialog print_dialog(printer, parentWidget());
 	print_dialog.setEnabledOptions(QAbstractPrintDialog::PrintToFile | QAbstractPrintDialog::PrintShowPageSize);
 #ifndef Q_OS_WIN32
 	if (!pdf_name.isEmpty()) printer -> setOutputFileName(pdf_name);
@@ -142,7 +142,7 @@ int DiagramPrintDialog::verticalPagesCount(bool fullpage) const {
 	Construit un dialogue non standard pour demander les pages a imprimer a l'utilisateur
 */
 void DiagramPrintDialog::buildDialog() {
-	dialog = new QDialog();
+	dialog = new QDialog(parentWidget());
 	dialog -> setWindowTitle(tr("Options d'impression"));
 	options_label = new QLabel();
 	use_full_page = new QCheckBox(tr("Utiliser toute la feuille"));
diff --git a/sources/diagramview.cpp b/sources/diagramview.cpp
index ba02afd00..c057d72c1 100644
--- a/sources/diagramview.cpp
+++ b/sources/diagramview.cpp
@@ -340,7 +340,7 @@ bool DiagramView::open(QString n_fichier, int *erreur) {
 			qreal diagram_version = root.attribute("version").toDouble(&conv_ok);
 			if (conv_ok && QET::version.toDouble() < diagram_version) {
 				QMessageBox::warning(
-					0,
+					this,
 					tr("Avertissement"),
 					tr("Ce document semble avoir \351t\351 enregistr\351 avec une "
 					"version ult\351rieure de QElectroTech. Il est possible que "
@@ -521,7 +521,7 @@ bool DiagramView::saveDiagramToFile(QString &n_fichier) {
 	Exporte le schema.
 */
 void DiagramView::dialogExport() {
-	ExportDialog ed(scene, this);
+	ExportDialog ed(scene, diagramEditor());
 	ed.exec();
 }
 
@@ -558,7 +558,7 @@ void DiagramView::dialogEditInfos() {
 	BorderProperties border = scene -> border_and_inset.exportBorder();
 	
 	// construit le dialogue
-	QDialog popup;
+	QDialog popup(diagramEditor());
 	popup.setMinimumWidth(400);
 	popup.setWindowTitle(tr("Propri\351t\351s du sch\351ma"));
 	
@@ -725,7 +725,7 @@ void DiagramView::editConductor(Conductor *edited_conductor) {
 	ConductorPropertiesWidget *cpw = new ConductorPropertiesWidget(old_properties);
 	
 	// l'insere dans un dialogue
-	QDialog conductor_dialog;
+	QDialog conductor_dialog(diagramEditor());
 	conductor_dialog.setWindowTitle(tr("\311diter les propri\351t\351s d'un conducteur"));
 	QVBoxLayout *dialog_layout = new QVBoxLayout(&conductor_dialog);
 	dialog_layout -> addWidget(cpw);
@@ -784,7 +784,7 @@ void DiagramView::editDefaultConductorProperties() {
 	ConductorPropertiesWidget *cpw = new ConductorPropertiesWidget(scene -> defaultConductorProperties);
 	
 	// l'insere dans un dialogue
-	QDialog conductor_dialog;
+	QDialog conductor_dialog(diagramEditor());
 	conductor_dialog.setWindowTitle(tr("\311diter les propri\351t\351s par d\351faut des conducteurs"));
 	QVBoxLayout *dialog_layout = new QVBoxLayout(&conductor_dialog);
 	dialog_layout -> addWidget(cpw);
diff --git a/sources/editor/elementscene.cpp b/sources/editor/elementscene.cpp
index 057510b9b..f6096aad8 100644
--- a/sources/editor/elementscene.cpp
+++ b/sources/editor/elementscene.cpp
@@ -536,7 +536,7 @@ void ElementScene::slot_delete() {
 */
 void ElementScene::slot_editSizeHotSpot() {
 	// cree un dialogue
-	QDialog dialog_sh;
+	QDialog dialog_sh(element_editor);
 	dialog_sh.setModal(true);
 	dialog_sh.setWindowTitle(tr("\311diter la taille et le point de saisie"));
 	QVBoxLayout *dialog_layout = new QVBoxLayout(&dialog_sh);
@@ -575,7 +575,7 @@ void ElementScene::slot_editSizeHotSpot() {
 void ElementScene::slot_editOrientations() {
 	
 	// cree un dialogue
-	QDialog dialog_ori;
+	QDialog dialog_ori(element_editor);
 	dialog_ori.setModal(true);
 	dialog_ori.setMinimumSize(400, 260);
 	dialog_ori.setWindowTitle(tr("\311diter les orientations"));
@@ -621,7 +621,7 @@ void ElementScene::slot_editOrientations() {
 void ElementScene::slot_editNames() {
 	
 	// cree un dialogue
-	QDialog dialog;
+	QDialog dialog(element_editor);
 	dialog.setModal(true);
 	dialog.setMinimumSize(400, 330);
 	dialog.setWindowTitle(tr("\311diter les noms"));
diff --git a/sources/editor/qetelementeditor.cpp b/sources/editor/qetelementeditor.cpp
index 5759adf63..3913d64b3 100644
--- a/sources/editor/qetelementeditor.cpp
+++ b/sources/editor/qetelementeditor.cpp
@@ -582,7 +582,7 @@ bool QETElementEditor::isReadOnly() const {
 	Lance l'assistant de creation d'un nouvel element.
 */
 void QETElementEditor::slot_new() {
-	NewElementWizard new_element_wizard;
+	NewElementWizard new_element_wizard(this);
 	new_element_wizard.exec();
 }
 
diff --git a/sources/elementspanel.cpp b/sources/elementspanel.cpp
index 3d4e99f40..f8d75d622 100644
--- a/sources/elementspanel.cpp
+++ b/sources/elementspanel.cpp
@@ -317,7 +317,7 @@ void ElementsPanel::launchElementEditor(const QString &filename) {
 	@param filename Chemin du dossier representant la categorie
 */
 void ElementsPanel::launchCategoryEditor(const QString &filename) {
-	ElementsCategoryEditor ece(filename, true);
+	ElementsCategoryEditor ece(filename, true, this);
 	if (ece.exec() == QDialog::Accepted) reload();
 }
 
diff --git a/sources/elementspanelwidget.cpp b/sources/elementspanelwidget.cpp
index 0a61e3c7a..4bfce2355 100644
--- a/sources/elementspanelwidget.cpp
+++ b/sources/elementspanelwidget.cpp
@@ -107,7 +107,7 @@ void ElementsPanelWidget::reloadAndFilter() {
 	Appelle l'assistant de creation de nouvel element
 */
 void ElementsPanelWidget::newElement() {
-	NewElementWizard new_element_wizard;
+	NewElementWizard new_element_wizard(this);
 	new_element_wizard.exec();
 }
 
@@ -115,7 +115,7 @@ void ElementsPanelWidget::newElement() {
 	Lance le gestionnaire de categories
 */
 void ElementsPanelWidget::newCategory() {
-	QDialog new_category_dialog;
+	QDialog new_category_dialog(this);
 	new_category_dialog.setMinimumSize(480, 280);
 	new_category_dialog.setWindowTitle(tr("Gestionnaire de cat\351gories"));
 	
diff --git a/sources/qetdiagrameditor.cpp b/sources/qetdiagrameditor.cpp
index 15384f202..ae33b7b71 100644
--- a/sources/qetdiagrameditor.cpp
+++ b/sources/qetdiagrameditor.cpp
@@ -1060,7 +1060,7 @@ void QETDiagramEditor::writeSettings() {
 	@see ConfigDialog
 */
 void QETDiagramEditor::configureQET() {
-	ConfigDialog cd;
+	ConfigDialog cd(this);
 	cd.exec();
 }